1. Olympic gymnastics competition

Gymnastics has become a special sports competition, especially in competitive gymnastics, and has gone through a process of development and improvement.Taking the Olympic gymnastics records as an example, the 1st Athens Olympic Games in 1896 set up a saddle horse, suspension, horses, double bars and horizontal bars projects, as well as climbing ropes.But there are no free gymnastics projects, and only men's gymnastics competitions.

In the future Olympic Games, gymnastics competitions have added fire stick exercises (later changed to light instrumental gymnastics), Swedish gymnastics, European gymnastics and other gymnastics competitions.At the 10th Olympic Games in Los Angeles in 1932, free gymnastics was added to make competitive gymnastics start in the scale.At the 11th Olympic Games in Berlin in 1936, the gymnastics competition really formed 6 men's competitions; gymnastics such as light equipment gymnastics, Swedish, and European -style gymnastics were canceled from the men's gymnastics competition.The Olympic Games also opened the women's gymnastics competition, but the improvement and shape of the women's competition project was only completed in the 17th Roman Olympics in 1960.

In 1984, the 23rd Los Angeles Olympics, art gymnastics was listed as a formal competition.In 2000, the 27th Sydney Olympics, trampoline was listed as a official competition.

2. World Gymnastics Championship

The World Gymnastics Championships is a worldwide gymnastic event hosted by the Gymnastics Association hosted by the International Gymnastics Association and a country.Mainly divided into competitive gymnastics and art gymnastics championships.Its history is second only to the Olympic gymnastics.The Competitive Gymnastics World Championships began in 1903.After 2002, except for the Olympic year, it is held once a year, that is, three times every four years.China in the Tianjin Gymnastics Championships and the 2014 Nanning Gymnastics World Championships in 1999.

Development process

The Competitive Gymnastics World Championships began in 1903.It was held every two years from 1903 to 1915, and was suspended during the First World War.At that time, only men participated in the gymnastics World Championships. Each team was 9 people. In addition to the single bumper, double bar, suspension, and saddle horse, there were 150 meters, high jumps, weightlifting and other projects.

After the resumption of was resumed in 1922, it was held every four years in 1978, of which the women's gymnastics project was added in 1934; in 1942 and 1946, it was suspended again due to World War II.

Six current men (horses jumping horses, pommel horses, horizontal bars, double bars, rings, free gymnastics) and women's four (jump horses, high and low bar, balance wood, free gymnastics) have been implemented since the 1954 World Championships.Then appear in the Gymnastics Championships, which is objectively professional to be objectively professional.

From 1979 to 1991, it was changed every two years.From 1991 to 1997, it was held once a year.Two times were held in 1994, and individual and group competitions were held in Bristmi, Australia in April and November, and Dortmund in Germany in Australia.

From 1997 to 2001, it was changed to two years once again. After 2002, except for the Olympic year, it was held once a year, that is, three times a year every four years.

3. World Cup Gymnastics Tournament

The World Cup Gymnastics World Cup is the world's highest level gymnastics contest hosted by the International Gymnastics Federation.The scale of the game is small, and only the omnipotent and single self -selected action finals are performed.Several stations are held each year, and players with excellent performance in the sub -stations participate in the finals.Athletes who have won the men's and women's all -around championships will win the World Cup; the athletes who have won the top 3 men's and women's singles awarded the Gold, Silver, and Copper Medal respectively.The formal World Cup is a mobile award ring, and athletes can only get micro -copy products and save permanent preservation.

The qualifications are in accordance with the provisions of the technical regulations of the International Gymnastics Federation: Athletes who won medals in the personal all -around finals and single finals of the last World Gymnastics Championship and Olympic Gymnastics Competition, 18 men and women each;Level male and female athletes.The above qualified contestants will be selected by the International sports Federation of Men and women.If athletes (regions) do not have medals, athletes can be selected to participate in the competition in accordance with technical regulations.Therefore, athletes participating in the World Cup gymnastics can only be at most 20 men and women.Technical regulations stipulate that each country (region) can only send up to 3 men and women.If a country (region) at the same time has 4 athletes in the men's or women's teams meet the qualifications of the competition, they can only send 3 people to participate in due to the restrictions of personnel.

The 1st Gymnastics World Cup Finals was held in London in 1975.It was no regular before the 7th Gymnastics World Cup finals. In the late 1970s, the International Gymnastics Federation made a unified arrangement in the world's major competitions. The World Cup decided to hold every 4 years.The 4 years are one cycle, and the arrangement is: Olympic Games -World Gymnastics Championship -World Cup Gymnastics Championship -World Gymnastics Championship. This decision has been maintained until 1990.After 1990, the International Gymnastics Federation decided to stop hosting the World Cup.

In 1997, the Executive Committee of the International Gymnastics Federation updated the time of the World Gymnastics Competition to make it more regular.It was decided to hold the Gymnastics World Cup in the double years, and alternate the World Gymnastics Championships in a few years.In 1998, the International Gymnastics Federation decided to restore the World Cup, but changed the previous game system and changed to the World Cup series, including preliminaries and finals.Participate in the series of three stations on different continents, and obtain the top 8 athletes in accordance with the ranking ranking to get the qualifications of the World Cup finals.The finals only played a single game to determine a single world championship.At the end of this year, the first World Cup finals were held in Japan. Chinese players won 6 gold medals in one fell swoop. The points of this contest player are dependent on the results stipulated by the International sports Federation in the first two years of 1998.The competition includes preliminaries and finals, organizing preliminary competitions in several countries (regions), and qualifications to participate in the finals in the form of national (regional) points.This competition only played a single game to determine the world championship.

In May 2008, the International sports Federation decided at the meeting at Cape Town, South Africa. Because there was no national hosting a new competition, any competition related to the Gymnastics World Cup was suspended from January 2009.

[Sunglasses] What problems do you need to pay attention to when you buy Sunglasses in Sunglasses?

The strong sunlight contains a large amount of ultraviolet and infrared, which may damage the cornea, crystal, and even the bottom of the eyes. Wearing a pair of Sunglasses can cover or absorb a part of the light to reduce the stimulation of the eyes.In recent years, due to everyone's importance to health, many When people go out in the hot summer, they all like to wear Sunglasses to reduce the stimulus of sunlight. Some people also like to decorate it.Sunglasses There are many types of types, and they should be selected according to different needs.

What are the color of Sunglasses

Pink lens

This is a very common color.It can absorb 95%of ultraviolet rays, and some short wavelength visible light.In fact, such functions are similar to general color lenses. This means that pink lenses do not have a greater protection effect than ordinary lenses.But for some people, it is still quite psychological to help, because they feel more comfortable to wear.

Gray lens

Absorbing infrared rays and 98%ultraviolet rays.The biggest benefit of gray lens is that the original color of the scene is not changed due to the lens, and the biggest is satisfactory that it can effectively reduce the strength of the light.

Green lens

Green lenses can be said to be represented by the "Ray Peng series" lenses. Like gray lenses, it can effectively absorb infrared light and 99%of ultraviolet rays.But green lenses can make the color of some scenes distorted.Moreover, the effect of blocking light is slightly inferior to gray lenses. However, green is still not excellent protective lenses.

Brown lens

This kind of lens is similar to the type of light of light, but it absorbs more blue light than green lenses.Brown lenses cause color distortion than gray and green lenses, so the satisfaction of ordinary people is also lower.But it provides another color choice, and it can slightly reduce the halo of the blue light to make the image clearer.

Yellow lens

It can absorb 100%ultraviolet rays, and allows infrared rays and 83%visible light penetration lenses.The biggest feature of yellow lenses is that most of the blue light is absorbed.Because when the sunlight is too atmospheric, it is mainly expressed in blue light (which shows why the sky is blue).After the yellow lens absorbs the blue light, it can make the scenery of nature more clear. Therefore, yellow lenses are often used as a "filter", or hunters are used when hunting.However, no one can prove that the shooter is better because of wearing yellow glasses.

What problems need to pay attention to when buying Sunglasses

Medical experts suggest that when you buy Sunglasses, you can judge according to whether the vision is clear.To buy high -quality Sunglasses, the only thing that can do is to buy Sunglasses in optical specialty stores and regular glasses shops.

The human body has the instinct of self -protection. When the eyes encounter strong light, the pupils will naturally become smaller, making the ultraviolet energy of the eyes enter the eyes decrease. Once wearing glasses without ultraviolet function, it will enlarge the pupil.The glasses do not have the effect of isolation of ultraviolet rays. At this time, the eyes are equal to the portal opening, and letting ultraviolet rays enter, the damage to the eyes can be imagined.

Sunglasses can block ultraviolet rays because a special layer of coating film is added to the lens, and inferior Sunglasses not only cannot block ultraviolet rays, but also severely reduce the light transmission of the lens, make the pupils larger.Damage.In addition, inferior lenses also cause visual fatigue symptoms such as nausea, forgetfulness, insomnia.

The color of Sunglasses is superior, followed by light gray, tea, or light smoke, followed by green, amber, blue, etc. Red is used as a sunbathing or snow.

It is best to use polarized Sunglasses in a car because they can weaken the dazzling strong light.

If you can see your eyes very clearly after you put on Sunglasses, then your lens color is too light.

When the sun goes down the mountain, it is best to move to Sunglasses, otherwise, our vision will be affected in a weaker place.

You should choose a regular manufacturer to produce a Sunglasses in regular manufacturers at a regular glasses shop.

Pay attention to the surface of the lens when selecting.

Thin -faced people are suitable for round mirror frame Sunglasses.

Face -shaped mirror frame

Sunglasses are the focus of the entire face, which strongly outlines the outline of the face, just like a thick waist Belt highlighting the small waist of the skirt.What kind of face shape, what mirror -frame Sunglasses should we wear?The following is the suggestion of optometry Chen Huifen: MIU MIU ultra -thick plastic Sunglasses play black and white, and the feet design is clear.

1. Ellipse face shape: with Square, or smaller positive rectangular frame Sunglasses.This face is the most pleased, suitable for any kind of frame.

2. Round face shape: Sunglasses with larger lenses, the best frame with rectangular frames, outlines outline.

3. Face shape: with a round or elliptical frame, it is wide and light enough.

4. Mounthole face shape: with a piece of mirror frame.

1. What does fish net mean

fish Net, that is, "fishing nets", is an indispensable fishing Tool for fishery production.The coastal fishermen first caught by the seaside with simple fishermen.The Ming Dynasty appeared in shallow sea fishing mortar such as and stick network.

After the Qing Dynasty, the distant sea fishing grid appeared.Most of the inland fishermen are caught in small Fishing gear.The main fishery used for fishery production has a net, stick net, push net, arch pocket network, ground network, plug network, grabbing net, sticking net, streaming net, dragging net, Daowang, Xuanwang, Zhangwang.com, Zhangwang.com, fishing hooks, steak, fishing, foil, river surround nets, rowing nets, copying nets, Ho.com, Hanging nets, foil nets, crab baskets, crab downside, etc.Among them, La.com and streaming nets are often used for long sea fishing, and adhesive nets are mostly used for inland and offshore fishing.

Second, the fishnet or Fishing Net is correct

Both are fine.

One is used to fish, and the other is used to load fish.fishing nets refer to large fishing operations, not only fishing, but also tools for fishing for other seafood. fish net refers to small tools for fishing, such as farms or leisure fishing.

Sentence:

1. Open the Fishing Net first so that the fish can find the entrance of the Fishing Net.

2. The fish was covered by the Fishing Net, but it tried to break through the Fishing Net.

3. Fishermen put layers of fishing nets on the fishing boat and prepare to fish crab seedlings in the water.

4. The fishing nets under their cloth will be intercepted by fishing nets when they are full of floating balls in the full tide.

5. The abandoned Fishing lines and fishing nets will trap marine life, cut their fins or choke them.

6. Open the fish net before the fish can find the entrance of the Fishing Net.

one,Conference tableHow to put mineral water

Due to the request of the meeting to provide beverage services, the standard meeting is generally provided with mineral water.

mineral water is on the right side of the Sika.When placing mineral water, the mineral water is generally placed on the right hand side of the participants to facilitate the participants to get it.If the bottle water is placed, the tag of the bottle should be faced to yourself to avoid mistakenly obtained.

The placement of mineral water at the Conference table will vary from the preferences of venues, culture and organizers.However, the following are some suggestions to refer to:

1. The desktop is neat: ensure that the desktop is clean and the flawless mineral water bottle is placed.

2. Easy to use: Place mineral water in places where the participants are convenient, such as the corner of the table.

3. Place the order: Place the tea cup next to the mineral water to facilitate the use of the participants at the same time.

4. Keep consistent: The placement of tea cups and mineral water bottles should be consistent to show professionalism and neat image.

5. Following cultural habits: Considering local cultural habits, such as the placement of tea cups in Chinese culture may be different from Western culture.

6. Consider environmental protection: minimize the use of disposable cups and bottles as much as possible, and can provide reusable cups and large bottle water.

7. Prepare sufficient mineral water: Make sure to prepare enough mineral water according to the scale of the meeting and the number of participants.

2. Conference desktop items placement standards

1. Tea cup: On the upper right side of each position, the cup handle is to the right,StoremateIn the face of the guests, the cup is 5cm from the table on the table at a meeting table, and the label pad is placed below.

2. Biter cup: Put on the upper right side of each seat, usually on the left side of the conference cup, the hedging cup and the tea cup are 1cm, and the coasters are placed below.

3. mineral water: On the right of each hear cup, the Trademark of mineral water is faced with guests (regular meetings entertaining general mineral water bottle).

4. Oxavar: Generally, there are three seats in the general meeting, a pan -cylinder in the center, and 1,5cm in front of the table at the table.

5. towel support: Put on the upper left side of each conference position with 2cm interval. The upper end of the towel support and the conference cup is a straight line.

6. Meeting paper: Put on the right side of each guest's chest. At the bottom left of the tea cup, the conference paper is placed at 1cm from the meeting table. Generally, 2 pieces of paper are placed.Meeting.

7. Pen (usually a pencil): Placed on the top of each paper, the pen tip is in front, the slope is 45 , and the shop standard is up.

8. flowers: Put it according to the requirements of the guests, and the height does not exceed 30cm.

9, seat card: placed in front of each seat, 1cm above the Conference table.

10. Tea break: Put it according to the requirements of the guests (it is best to automatically persuade the guests to establish a tea break for the guests, and at least one waiter to provide services).Put paper towels, toothpicks, raw fruit plates, food discs, coffee cups, discs, coffee spoons, coffee stoves, sugar tanks, milk, Square sugar or sugar Bags.

Note: All items are required to be specified.

3. Conference table Place etiquette and conference services

1. Place etiquette

(1) The placement of the Conference table should be positive. The chair is placed in front of the Conference table and kept about the distance from the Conference table. The distance before the chair should be evenly about one person distance.To become a straight line.

(2) Put the manuscript paper on the Conference table according to the location of the chair. The manuscript paper is placed in the middle of the middle position of each chair.The nib is facing up, and the label was leaked.

(3) After the manuscript paper is positioned, the tea cup is placed above the right of the manuscript paper, and the distance is about a finger at the side of the manuscript paper.

2. Conference service

(1) The water starts from the right (the leader first, the clockwise sequential sequence), after pouring the water, the pot mouthDo not pour from the guest to the right.The podium must add water from the back of the guest.

(2) When adding water, if there is a covered cup, apply the little finger and unknown finger of the left handCracker the small balls on the cup lid, hold the cup with your thumb, index finger and middle finger, and end it from the deskTea cup, one after the other, pour the water into the cup sideways.

(3) If the guest work or talks, say "I'm sorry", and note when pouring the waterDon't be too full, it is advisable to be full of seven or eight points in the cup.Do not work too high, let aloneYou must cross the shoulders and heads of the guests.

(4) Do not lift the pot too high when continuing water, so as not to splash water.Don't stop the tea cupPour water directly or put the cup lid on the table.

(5) Renewal of water is generally carried out after 15-20 minutes in the event, and the venue is used at any timeWater situation.When you encounter the hot weather, you must add it at any time.The mouth is too high to avoid splashing out of the cup.Key points: Get up or rolled on the table on the cup lid, noCan be deducted, unhygienic, impolite.

(6) Choose the water time before the meeting starts, usually 5 minutes before the start of the meeting.

1. What is a single -arm street light

There is only one light pole of the general lighting street light. On the top of the light rod, a branch arm is equipped with a lamp head to provide public lighting. We call this street lamp as a single -arm street lamp, also known as single -arm light.Single -arm Lights are divided into ordinary sodium lamps, single -arm street lights, energy -saving lamp single -arm street lights, pyrine single -arm street lights and LED single -arm street lights.

Single -arm Lights are the most common type in road Lights. There is only one arm. The pole body uses Q235 low -carbon high -quality steel bending welding at one time. The weld is Smooth and Smooth.The appearance is beautiful, simple and Smooth, and is usually installed on both sides of the river, slope, or wider road surface to play a role in lighting road conditions and guiding safe driving.

2. What is the lamp of both arm street lights

Both arm lamps are derivative lamps of single -arm street lights, that is, two branches on the top of the light pole, two lamp heads are installed, and the roads on both sides are illuminated.

The two branches of the arms have a certain symmetry, which is more abundant than the shape of a single -arm light. Generally, it is installed on a multi -away green Belt or a road section with special lighting requirements.energy.

What is the difference between one -arm street lamp and binocular street lights

1. Different shapes

The main difference between single -arm street lights and arms street lights is the shape. Single -arm street lights are one arm, and the top of the light rod of the arms street lights has two branches, and it is symmetrical.The street lights are more beautiful.

2. Different installation environment

Single -arm street lights are suitable for wider roads such as residential areas, rural roads, factories, parks, etc., and both arm street lights are mostly used on the two -way roads on the road and some special lighting road sections that need to take into account both sides of road lighting at the same time.Essence

3. Different costs

Single -arm street lights only need to install one branches and one lamp head. The installation cost is definitely lower than the arms street lights. However, in terms of use, the arms street lights can take into account the roads on both sides with only one light pole.Installed on both sides, generally, the arms are more energy -saving and environmentally friendly.

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