在蜗杆传动中，主动件一定是蜗杆，从动件一定是蜗轮。

综合阅读。

     Are you often free on weekends? Tom had a busy weekend last week. (A) On Saturday morning,

he  went to visit his grandmother with his parents. His grandmother lives in a beautiful town. She is

a loving woman. There Tom went to the mountains with his cousin. After dinner, he went shopping at

Haorizi Supermarket. In the evening, he saw an interesting comedy. Song Dandan is in the comedy. On

Sunday morning, Tom wanted to play soccer, but (B)it was rained very hard, so he had to stay at home.

He wanted to play the guitar, but he couldn't find his guitar. So he did some reading and watched TV.

In the afternoon, (C) 他帮妈妈做家务，然后和爸爸下棋.  In the evening, he studied for the coming

math test. (D) Then it was time to to bed.

1. 对画线部分 （A）处的黑体部分提问。     

     On Saturday morning, _______ _______ he _______ with his parents?

2. 画线部分 （B）处有一处错误，找出并改正。

    _______________________________________________

3. 将画线部分 （C）处翻译成英语。

    _______________________________________________   

4. 将画线部分 （D）处翻译成汉语。 

    _______________________________________________

5. 简要回答下面的问题。    

    What did Tom do on Sunday morning? 

    _______________________________________________

女，32岁，过马路时不慎被汽车撞成右下肢开放性骨折，因失血过多发生休克。人院后应安置的体位是

A．头高足低位 

B．头低足高位 

C．中凹卧位 

D．去枕仰卧位 

E．俯卧位

女性，23岁，生气后突发呼吸困难，呼吸50次／分，伴手足抽搐，最可能的诊断是（）

A.支气管哮喘

B.气胸

C.心源性哮喘

D.肺梗死

E.癔病

设一数字传输系统传送16进制码元的速率为2400B，则这时的系统信息速率为（）。

试述拙政园的五大头衔是哪些？