问题 问答题 简答题

为什么主要通风机房内必须安装电流表、电压表?

答案

参考答案:为了检测通风机电机的运行情况,及时掌握电机运行参数;因此主要通风机房内必须安装电流表、电压表。

阅读理解

If someone says to you, “give me five”, don't give five yuan to him! It will make others laugh! The person isn't asking for your money, but your fingers.

In the U.S.A, “give me five” or “give me the high five” is a good gesture(手势). You can see it often in films or on TV. It means the slapping (拍打)of each other's right hands together. People do it when something happy happens. For example, if a student does well in exams or gets No. 1 in his school sports meet, he will give high fives to his friends to celebrate.

Who did this gesture first? Why did he do that? It may come from the old Roman (古罗马的) gesture of raising(举起)the right arm for the emperor(皇帝). This showed that the person raising his arm had nothing in his hand and he couldn't hurt the emperor.

Why not try to give the high five to your friends?

小题1:“Give me five” is a gesture to  _______.

A. make people laugh

B. ask for money

C. celebrate good things

小题2:The gesture “give me five” is the slapping of  _______.

A. feet         B. hands       C. heads

小题3:Now you can do “give me five” when you  _______.

A. lose your money

B. do badly in exams

C. meet your best friend

小题4:The gesture started in  _______ according to(根据) the story.

A. Rome(罗马)         B. America              C. China

小题5:The Romans raise the right arms for the emperor to show they  _______

A. liked him very much

B. were happy to see him

C. were safe for him

单项选择题