What safety matters should college students pay attention to in winter vacation? Please keep this guide.

  Zhongxin. com, January 18 th At the end of the year and the beginning of the year, the winter vacation is coming. While everyone is enjoying the holiday, the safety issue cannot be ignored. What are the safety matters that need to be paid attention to when studying in school, practicing practice and traveling during holidays? Yesterday, Weibo, the official of the Information Office of the Ministry of Education, issued the "Safety Guide for College Students’ Winter Holidays", reminding college students to beware of illegal organizations such as pyramid schemes, choose regular recruitment/part-time websites, and pay attention to personal information protection.

  Detention safety article

  When staying in school during the holiday, students should know the arrangement of logistics service during the winter vacation in advance, and strengthen the study of safety knowledge such as fire prevention, theft prevention, fraud prevention and food hygiene, and strengthen the awareness of safety prevention.

  Guard against stealing, robbing and cheating

  Lock the dormitory doors and windows when you go out, take care of your valuables, and especially don’t lend your documents to others easily. Don’t store a lot of cash or leave valuables in the dormitory or on your body.

  Prevent problems from not "burning"

  Pay attention to the safety of electricity use, turn off the power in time when you leave the dormitory, do not go to bed with computers and appliances, do not pull and connect wires in the dormitory, do not use high-power appliances, and do not make a fire in the dormitory to prevent winter fires. Call 119 as soon as possible because of an electric fire.

  Abide by dormitory management regulations

  Don’t stay with the opposite sex and foreigners, don’t rent out beds to others, and don’t store flammable and explosive materials.

  Pay attention to the safety of daily life

  Keep the dormitory environment clean and tidy, and dry clothes and bedding frequently; Indoor ventilation should be frequent to promote air circulation and prevent diseases. Pay attention to keep warm and cold, exercise diligently, ensure nutrition, avoid overeating and pay attention to food hygiene.

  Healthy and civilized internet access

  Rational use of the network, reasonable arrangement of time, not indulging in the network; Beware of online fraud and abide by online ethics; Protect property safety, don’t indulge in online games and video games, and don’t contact or participate in unfamiliar online games, live broadcasts, QQ groups, WeChat groups and post bars.

  Practice safety article

  During the holidays, many students choose to find internships, but the peak season of winter internship is also the peak of fraud. At the same time, college students should protect themselves and guard against being cheated.

  Choose a regular recruitment/part-time website.

  College students must log on to the official recruitment website and be wary of "employment agencies" and "employment agencies". Before submitting their resumes, they must inquire about the company’s relevant information and judge its authenticity.

  Pay attention to the protection of personal information

  Some personal information on your resume need not be too specific, such as mailing address, but should focus on your work experience. Be alert to all kinds of telecom fraud and online fraud, and report to the police in time when problems are found.

  Beware of illegal organizations such as pyramid schemes.

  Be alert and stay away from pyramid schemes, which usually have one or more of the following characteristics: when you join the club, you are told that one of your duties is to develop more people; Pay an expensive membership fee; Many people are in high spirits in the workplace. If pyramid schemes are identified, college students should immediately stop working and call the police in time.

  Take care of your finances

  When you go out for an internship, you should not carry too much cash with you, leaving only a small amount of pocket money. Generally, you should not give your luggage to someone you don’t know.

  Choose a regular lodging place.

  If you want to stay in a hotel or guest house with a business license and regular management, you can give valuables to the service desk for safekeeping, don’t go out alone at night, lock the doors and windows when you sleep, and don’t sleep in a room with strangers.

  Choose tutoring through formal channels.

  Looking for tutoring through schools, acquaintances and formal intermediaries, we should not trust small advertisements and other unidentified tutoring information. The first time you go to a student’s home to give a lecture, please be accompanied by your classmates, and then get to know the parents of the students before you can continue on the basis of ensuring safety. When you go out as a tutor, you must tell your classmates the other person’s home address and telephone number, and tell them the time to return to school, in case of other circumstances, you can contact your classmates in time.

  Travel safety articles

  The winter vacation is coming, and I believe many college students have arranged travel plans. Although travel is full of novelty, it is inevitable that there will be security problems. Therefore, whether traveling together or going home for the New Year, students must do a good job in safety protection.

  Don’t put valuables in conspicuous places.

  When traveling, it is best not to carry a lot of cash and valuables, and the backpack must be placed in a conspicuous field of vision, or given to a companion.

  Take a legally qualified vehicle.

  When choosing a chartered car service for travel and tourism, you should choose vehicles and drivers with legal operation qualifications, and don’t take the "black" bus that attracts tourists privately. If you are in doubt about the condition of the vehicle, you can ask the transporter to show relevant certificates. Don’t take an illegal "black" bus because of greed and cheapness.

  Do not take overloaded and overcrowded vehicles.

  Don’t go out in vehicles that are overloaded and mixed with passengers and goods. Vehicle overload seriously affects the braking and handling performance of vehicles, and is prone to safety accidents such as brake failure. For your own safety, you must not take chances and take overloaded vehicles because of preferential prices and quick arrival.

  Minimize going out in bad weather.

  In winter, freezing, rain and snow are frequent, and the road surface is slippery. Travel should check the weather of the destination in advance, reduce going out in severe weather such as fog, rain and snow, and pay attention to safety.

  The mobile phone must be kept open.

  Before leaving school, you must inform the counselor, roommates and parents of your personal whereabouts and contact information, and keep the communication tools open so that you can find out in time and help solve the problem.

  Beware of overly enthusiastic strangers.

  Do not trust strangers’ words and deeds, and do not drink or eat strangers’ drinks and food easily; Don’t casually accept strangers’ bags, buy tickets, look after things and other help. For college students who are not deeply involved in the world, it is indispensable to guard against others.

  Communication security article

  With the coming of winter vacation, college students need to be alert to high-incidence telecommunication network fraud such as booking fraud, online shopping refund and high-paying recruitment. What are the characteristics of these frauds? Learn with Xiaobian.

  False booking

  Criminals use portals to make fake web pages of online booking companies, publish false information such as booking air tickets and train tickets, and lure victims into being fooled by lower fares. Later, he asked for another remittance to commit fraud on the grounds of "incomplete identity information" and "frozen account number".

  Refund of online shopping goods

  Criminals took advantage of college students’ online shopping for a large number of goods during the Spring Festival, pretending to be online shop customer service staff to make phone calls or send text messages and falsely claiming that the goods taken by the victims were out of stock and needed a refund, demanding bank card numbers, passwords and other information to commit fraud.

  High-paying recruitment

  Criminals take advantage of students’ eagerness to practice during the winter vacation, and recruit online staff such as online shop customer service staff, typists, and people who brush traffic through the Internet with high salaries to commit fraud on the grounds of paying deposits and deposits.

  Loan installment shopping

  Criminals send short messages in groups, saying that they can provide loans or purchase goods by installment for those who are short of funds, with low monthly interest rate and no guarantee. Once the victim believes it, the other party will commit fraud in the name of prepaid interest, deposit, etc., and will face high interest if it fails to do so.

  online game

  Criminals use online games to buy and sell game coins and equipment. After defrauding players’ trust, players are allowed to send money offline, and they will not trade after they get the money. Criminals post information on the game forum, get the remittance and game account provided by the player, and embezzle it together with the account for a day or two.

  Tips

Pineapple and pineapple have different names, so the varieties are different? Don’t be confused after reading it.

Are pineapple and pineapple the same fruit? This topic is often debated.Some people think that pineapple and pineapple are different in taste and shape, and they are two different fruits. Others think that pineapple and pineapple are the same fruit, but they are different varieties, but if they are serious, these two statements are wrong.

Seriously say three little things about pineapple (pineapple):

1、The scientific name of this fruit is pineapple, commonly known as "pineapple".Botanically, it belongs to pineapple family, pineapple genus and pineapple species, so "pineapple" is the official name of others. Academically, pineapple and pineapple are one thing.

2、Why do pineapple and pineapple have two names?Pineapple originated in Brazil and was introduced to China in the 16th century. It was cultivated in Hainan Province, so it was named "pineapple" because it looks like a miniature version of jackfruit.

The pineapple in Taiwan Province Province is also imported from Brazil, but the local people see that its leaves are scattered piece by piece, which looks like the tail of a phoenix and the shape of a pear, so it is named pineapple.

Tips: Jackfruit is a fruit introduced from the western regions in China very early. It has been recorded in books in the Southern and Northern Dynasties, and it can be regarded as a "native fruit".

3、Why is there a dispute between pineapple and pineapple?Although pineapple and pineapple are two different names of the same thing, like potatoes and potatoes, tomatoes and tomatoes, they have actually been divided in the market.

Because pineapples have large internal spines and are inconvenient to eat, Taiwan Province has introduced a kind of "eyeless pineapple", which is relatively small and shallow, easy to peel and eat, and has a more delicate and sweet taste. It is very popular in the market, and gradually this kind of "eyeless pineapple" is mainly planted in Taiwan Province.In order to distinguish two different pineapples in the market, they are subtly called pineapple and pineapple respectively, so in fact, pineapple and pineapple are two different fruits in the fruit market.

Let’s get to know the difference between pineapple and pineapple from the market point of view.

1. The shapes of leaves are different.

The leaves of pineapple are very sharp, because there are many serrations on the leaves of pineapple, while the leaves of pineapple are smooth and generally have no serrations on the edges. In fact, you can tell the difference between pineapple and pineapple at a glance from here.

2, the meat thorn is different

When you see peeled pineapples in the market, you need to remove the flesh spines and cut out a series of "gaps". However, peeled pineapples, because they have no flesh spines or are relatively small, only need simple peeling, and their appearance is relatively smooth.

3. It tastes different

When eating pineapple, most of the time it is cut into large pieces and soaked in salt water for a period of time before it is suitable for eating, otherwise it will sting and taste sour and sweet; Pineapple, on the other hand, does not need salt water to soak, so it can be eaten directly and tastes sweeter.

Tips: Why do pineapples need to be soaked in salt water?This is actually because pineapple contains "bromelain", which is evolved to resist herbivores. When eating pineapple, this bromelain will digest protein, dissolve everything in your mouth and induce tingling, so some people say, "When you eat pineapple, pineapple is eating you."

Salt water can inhibit the activity of bromelain and make this tingling disappear. At the same time, cooking pays attention to "salt can lead to sweetness". A small amount of salt will make people feel sweeter, but the actual sweetness will not increase. This is just the illusion of taste contrast.

Not just pineapples and pineapples.

Some very similar foods in life

It’s also hard to tell ……

Here are some confusing foods.

Can you tell at a glance?

Cherry and Cherry

Cherry and cherry are the same fruit, but their planting areas and characteristics are different.

Cherry is produced in the United States, Canada and other countries, and cherry is produced in China. Cherry is deep red and cherry is bright red. Cherry has hard skin, firm pulp and sweet taste; Cherry, on the other hand, has thin skin, delicate flesh and sweet and sour taste.

Garlic seedling, garlic yellow, leek, leek yellow

Garlic seedlings are naturally grown by garlic in the sun, which is bright green and crisp; Garlic yellow is cultivated by shading garlic, which is bright yellow and soft. The difference between leek and chive is similar in principle.

Leek (yellow) and garlic seedling (yellow) are two kinds of plants, and the leaves of leek (yellow) are wider; The tip of garlic seedling (yellow) is slightly curled, and the leaves of leek (yellow) are straight.

","origin ":"gluttonous person’s diet diary collection hut.

ShangguanNo. Author: Shanghai Huangpu

The pace is wrong, and everything is in vain! Five basic steps of disassembling badminton learning

Most amateur badminton lovers don’t have a good foundation, not only their skills are not perfect, but many people can’t even distinguish the most basic steps clearly, let alone skillfully use them. Therefore, on the court, we often meet golfers who are "confused and tired into dogs". If we want to improve this situation, we must learn from the most basic pace. Today, we are going to disassemble five basic steps that are common in learning:Starting step, merging step, crossing step, stepping step and jumping step..

Strictly speaking, the starting step is not a step, but a nerve reaction. For example, when you are startled by surprise, your nerves suddenly tighten and your body will contract immediately. The starting step is the reaction of nervous tension and body contraction after seeing the opponent’s return ball, which is to better prepare for the next move. It is worth noting that:The starting step is only available when you are paying attention and actively moving your body.If you relax and don’t care about the return of the ball, there is no such subconscious action.

The function of the starting step: tighten the body and prepare for the movement; At the same time, it can also lower the center of gravity and change the direction.

Chen Yufei lowers his center of gravity.

Chen Long changed direction.

Most of the forms of starting steps are legs apart, jumping in place, etc., but no matter which form is used to remind the body to enter the moving state, from the preparatory action to the moving state, so we see that in professional competitions, many players jump in front of almost every step and constantly use the starting step. As shown below:

Step by step can be said to be the most commonly used moving gait, which can be interpreted literally as: the step in which the hind feet are close to the front feet. Take the right-handed racket as an example, and the step is to move the left foot together with the right foot. When the left foot touches the ground, the right foot continues to move forward, and the left foot comes together again, as shown in the following figure:

Parallel internet access

Step back

It can be seen that whether surfing the Internet or going backwards, you can choose to step in parallel. In the process of moving, the knee slightly bends to slightly lower the center of gravity, which can make the body more stable and is also conducive to the final shot; At the same time, stand on tiptoe and touch the ground to speed up the movement.

The above step is that the hind feet are close to the front feet, and the front feet drive the hind feet to move; The cross step is the cross movement of feet, just like our daily running, but it is not easy to master the cross step because of the uncertain moving direction on the field, and novices may trip if they don’t pay attention.

Cross steps can be divided into front cross and back cross. Generally speaking, many people are willing to adopt the way of back cross, which is convenient for the back foot to push the ground and the front foot to have more opportunities to change direction when moving. As shown below:

Anterior crossing

Posterior cross

It can be seen that the movement of the right foot is limited by the left leg and it is not easy to change direction at the front crossing; Then the right foot is more likely to change direction when crossing; At the same time, the left foot will push harder and move faster when crossing back. But as I said before, the back cross is easy to trip, so you should master it before using it.

By comparing the parallel step with the cross step, we can find that the cross step moves faster, while the parallel step moves more frequently. On the whole, the two steps perform well on the court and can be used in combination. In addition, according to the editor’s observation, long-legged athletes prefer cross steps, while ordinary athletes use parallel steps more.

Pedal stride is mainly used when hitting the ball on the internet. Whether it is step by step or cross step, the last step of surfing the internet will be pedal stride, which can not only speed up the speed to grab the hitting point, but also make the body land more stably, which has the stability of hitting the ball with the hand. Therefore, the importance of stepping is self-evident.

Literally, stepping is to step forward with the front foot and the back foot on the ground. As shown in the figure below, after the crossing step, there is a pedaling step to surf the Internet:

This seemingly simple stride is not easy to learn. You should master the following three core elements:

1、Right foot (stride foot). When landing, the right foot should land with the heel first, and the toes should face the direction of the ball and outward. The advantage of doing this is to make the right foot land more stable, thus making the whole body more stable. As shown in the figure below:

2、Left foot (foot pedal). The power of the left foot is the power source of the right foot stride. The greater the power of the left foot, the greater the stride distance, which is why the stride will be combined with the cross step. Because of the long stride distance, after the right foot strides, the left foot will slide forward with the body, and the inside of the left foot will slide on the ground by friction. As shown below:

3. Knees. Many golfers say that playing ball hurts our knees. In fact, our exercise is within the range of our body’s tolerance. The reason for the injury is that our movements are not standard and our own maintenance is not enough. When stepping forward, the legs that stride forward bear a huge impact, and the pressure on the knees is very great, so we should pay attention to one thing:The angle between thigh and calf must be greater than 90 degrees.That is, the knees do not exceed the toes.

If the included angle is less than 90 degrees, the impact on the knee will be greatly increased, which is very harmful to cruciate ligament and soft tissue. Professional athletes rarely have this way of catching the ball. For amateurs, we should pay more attention to this in order to reduce injuries.

In addition to stepping in front of the net, there is also a stepping in the backcourt. The action is the same as that in front of the net, but the direction is different, as shown in the following figure:

The simple understanding of the jump step is the take-off step, which has two forms:Take off in front of the net to save the ball, take off in the back court to hit the ball.

When you save the ball in front of the net, because the time is short and the opportunity is rare, you must be fast, lean forward and jump forward. The main action is to jump forward. When the body leans forward, the center of gravity is all on the right foot, and the right foot is used to jump forward, as shown in the following figure:

The advantage of jumping is that it is fast, and you can hit the ball in only one step. No matter how fast it is, it is not so fast. This is the advantage of jumping. The same is true for jumping shots in the backcourt, which can quickly catch the right hitting point, whether it is killing the ball or dropping the ball, it will give the opponent a certain threat.

Jumping backward to hit the ball is more common among male athletes. Using the strength of the arm to hit the ball, the body does not turn, so that the speed of hitting the ball is fast and the hitting point is higher. If you move to the position and then hit the ball, the hitting point is already very low and there is no lethality. Jumping backward requires certain leg strength and skills, which is an advanced skill for amateurs. As shown in the figure below:

These are the five basic steps commonly used. Except for jumping, starting step, merging step, crossing step and pedaling step are the steps that badminton lovers must master. Only by learning these basic steps and then mastering the combination of various steps can they move in an orderly way on the court and avoid the embarrassing situation of "being walked into a dog by the opponent". I hope this article will help you!

Why are you advised to swim more? These seven benefits are the best reasons.

In summer, many girls will choose swimming, because swimming can mobilize the muscles of the whole body, make the body more symmetrical and have the effect of bodybuilding. What are the benefits of female swimming besides losing weight?

1, enhance the body’s resistance

Women’s long-term persistence in swimming can improve their immunity, thus preventing diseases. Female friends can choose butterfly or breaststroke swimming, mainly using pelvic and thigh muscles, which can prevent uterine prolapse for a long time.

2. Make your body more perfect

When swimming, you will move to the muscles of the whole body, which is conducive to the balanced development of the muscles of the body in the long run. Swimming is an aerobic exercise, which can consume excess calories, decompose fat, reduce fat and make the body shape more perfect.

3. Protect the spine

Long-term adherence to swimming will also have a certain massage effect on the spine. When swimming, it is mainly because of the buoyancy of water, and there is no pressure on the cervical spine, so that the muscles of the neck are exercised.

4, enhance the body’s cold resistance.

When stimulated by cold water, the capillaries will expand and contract, and when swimming, the capillaries will expand in the state of hypoxia. After repeated expansion and contraction, the nervous system that dominates the skin blood vessels will become more flexible, thus increasing the adaptability of the human body to temperature changes.

5, improve the cardiopulmonary function.

Swimming for more than 40 minutes belongs to aerobic exercise, and long-term persistence can improve women’s cardiopulmonary function. Because there must be faster blood flow and gas exchange when swimming, this will increase the pumping ability of the heart.

6, regulating female endocrine

Swimming can also regulate women’s endocrine, make their mind more peaceful and their skin more moist. Long-term swimming can also promote the growth and development of bones and prevent osteoporosis and rheumatoid disease.

7. Relieve stress

Women’s long-term insistence on swimming also has the effect of relieving stress, because swimming can mobilize the brain nervous system to secrete a happy hormone, which can reduce stress, keep women away from depression and anxiety, maintain an optimistic attitude and adjust endocrine disorders.

Tips

Female swimming will bring so many benefits to the body, but never swim during menstruation, otherwise it will cause infection. Pay attention to protect your eyes when swimming to prevent conjunctivitis. Wipe your body clean in time after swimming to prevent cold. You must choose a thoroughly disinfected swimming pool and take a bath in time after swimming home.