开具的处方须经所在执业地点执业医师签字或加盖专用签章后方有效的是（） A.试用期的医

阅读理解。

     Mr Smith has about 2000 clocks in his house. He collects them from his childhood(童年). He puts

these clocks everywhere: on the tables and chairs, in the old car, and even under his bed. But Mrs Smith

doesn’t like these clocks at all. She has to (不得不) clean all the clocks every day. She has to listen to the strike(敲)of the clocks every minute. Even though(即使)with so many clocks, she can't tell the right time!

1. When does Mr Smith collect these clocks?

A. When he is a child.      

B. In 2000.    

C. After school.    

D. In the evening.

2. Where deos Mr Smith put his clocks?

A. On the tables and chairs.  

B. In the drawers.  

C. Under the bed.  

D. Both A and C.

3. What does Mrs Smith have to do every day?

A. Tell the time.    

B. Clean the clocks.    

C. Listen to the music.    

D. Go to work.

4. Why can’t Mrs Smith tell the right time?

A. Because she doesn’t have a clock.

B. Because her clocks are brocken.

C. Because different clocks have different times.

D. Because she can’t see the clocks.

5. How many clocks does Mr Smith have?

A. About 20      

B. About 200.    

C. About 2,000.    

D. About 20,000

若用P代表项目难度，难度越低P值越（）。

A.大

B.小

C.低

D.接近1

A、B、C、D都是短周期元素，原子半径：D > C > A > B。已知：A、B同周期，A、C处于同一主族；C原子核内的质子数等于A、B原子核内的质子数之和；C原子最外层电子数是D原子最外层电子数的3倍，下列说法正确的是：

A．A的元素符号为Be

B．B和D两种元素形成的化合物中只能含有离子键

C．C和D两元素的最高价氧化物的水化物相互反应生成盐和水

D．D₂B和D₂B₂阴、阳离子个数比分别为1：2和1：1

磋商谈判是外销员的工作，与外贸跟单员无关。( )

弥撒音乐常规部分不包括（）。

A.进台经、升阶经

B.荣耀经

C.信经

D.阿莱路亚、奉献经

F.慈悲经