均衡是（）插花花艺作品动势适度范围的手段。A、破坏 B、终止 C、了结 D、调控

A. Tips on playing tricks on April Fool’s Day

B. How France celebrate April Fool’s Day

C. An example of April Fool’s Day tricks

D. At what time Brits and the Danish celebrate April Fool’s Day

E. How Brits and the Danish celebrste April Fool’s Day

F. How April Fool’s Day began

Just joking around

April Fool’s Day has just gone. Maybe you have played tricks on your family and friends. Read on. You might be able to surprise them with some history and fun facts about the holidays as well.

小题1:___________

Imagine that a friend of yours calls you or sends a short message to you. “ Did you hear? Scientists have discovered a panda that can talk. I saw it on the news!” If you hear a crazy story like this, make sure to check the date. If it’s April 1, it might be an April Fool’s Day trick!

小题2:___________

April Fool’s Day is also known in some places as All Fool’s Day. No one knows for sure how it started. Some believe the history of April Fool’s Day goes back to the 16^th century when Europeans made January the start of the new year insead of April. Those who still celebrated the New Year on April 1 became known as “April fools ”. People began playing tricks on them.

小题3:__________

Today, almost 500 years later, April 1 is still a day when tricks are played on people in a spirit of fun. France calls this day Poisson d’Avril,which means “ April fish”. Children tape a picture of a fish onto their friends’back and shout “ Poisson d’Avril”.

小题4:___________

The UK only celebrates April Fool’s Day in the morning, as Brits believe it is bad luck to play jokes in the afternoon. In Denmark, people play tricks on April 1 and celebrate again on May 1.

小题5:___________

Remember, no matter what trick you play, be sure that it’s safe and not mean. April Fool’s Day isn’t fun if someone’s crying.

可在生长发育中自行调整，不需要矫治的为（）

A.预防性矫治

B.阻断性矫治

C.功能性矫治器

D.个别正常验

E.暂时性错

—个物体做半径恒定的匀速圆周运动，周期越小其线速度数值则越 ________ (填 “大”或“小”)，线速度数值越小其角速度越 ___________(填“大”或“小”)

Always read the label ______ you wash your clothes．

A．before

B．unless

C．since

D．until

我国大多数公路货代从事着（）的初级公路货物运输代理服务。

A、不定期

B、不定量

C、不定品种

D、不定路线