问题 单项选择题

关于放射免疫测定的说法,不正确的是

A.特异性强,敏感性低
B.常用于蛋白质和酶的测定
C.常用于半抗原和药物的测定
D.放射性强度常用毫居里(mci)或微居里(LLCi)表示
E.缺点是存在放射性污染

答案

参考答案:A

阅读理解

阅读理解。

                                                    The  Service  of  Hotel

Dear Sir,

     I'm writing to you about my stay at your hotel. My wife and I arrived on Saturday, 15th May and stayed for a week. Though we were treated well and found the service excellent,we  think there are one or two matters we should tell you.

    1. We had hoped for a nice holiday from our busy work lives, and your advertisement said"comfortable and quiet". We want to have a chance to enjoy ourselves. However , we were always waken up by the

noise every morning. Is it really necessary for the workers to start their repair work so early?

    2. We had hoped to swim in your"wonderful pool". To our disappointment(失望), we found

that it was closed for the whole time of our stay.

    I hope you do not mind my writing to you about these things, but I would be happy if you could give me some explanations(解释). It is a pity, and your service is so good in other fields.

    I hope to hear from you soon.

1.When did Mr Hector Bradley and his wife arrived?___________

A. Saturday  

B. Sunday    

C. 5th May  

D. l5th March

2.What time did they come back?___________

A. 15th May  

B. 22nd May  

C. 22nd March  

D.A week

3.What about the service of the hotel?_________

A. Comfortable and quiet.  

B. Wonderful pool.

C. Excellent service.

D. Many matters.

4.What did Mr Hector Bradley not hope for their holiday?__________

A. Good service.

B. Swim in the pool.

C. Much noise.

D. Advertisements.

5.What was Mr Hector Bradley's attitude to the service of the hotel?__________

A. Angry at the service.

B. Glad to live in the hotel.

C. Very sorry.

D. Sincerely write to the manager.

单项选择题 A1/A2型题