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问题 单项选择题

内毒素的主要成分为

A．肽聚糖
B．蛋白质
C．鞭毛
D．核酸
E．脂多糖

答案

参考答案：E

解析：内毒素的化学组成是脂多糖，故选项E是正确答案。肽聚糖是细菌细胞壁的组成成分，非内毒素的组成部分；细菌外毒素的化学成分是蛋白质；鞭毛与核酸不构成细菌的毒素成分，故选项A、B、C与D均为错误的。

选择题

选出与划线部分意思相近的选项。

1. —What time is it now, please?

            — Let me see. Oh, it’s three fifty-five.   

A. fifty-five past three          

B. fifty-five to two          

C. five to three              

D. five to four

2. It’s time to have lunch.      

A. for lunch                

B. for to have lunch    

C. to lunch                

D. for the lunch

3. —Thank you.

           — That's all right.    

A. OK        

B. All right    

C. You’re right    

D. Your are welcome.

4. I have no watch.

A. do have not              

B. don’t have a          

C. not have a              

D. don’t have

5. Thank you very much.

A. a lot                    

B. a little        

C. all the same              

D. at all    

6. This dress is cheap. I’ll take it.       

A. buy        

B. give          

C. get        

D. have

7. —What can I do for you?  

           — I'd like some rice.                

A. like        

B. buy          

C. want            

D. take     

8. He is from England.   

A. from      

B. comes from    

C. come from      

D. goes to     

9. Nice to meet you.    

A. look at    

B. see          

C. look after        

D. find

10. Nice to meet you. See you later.

A. Thank you    

B. Sorry      

C. Good            

D. Bye
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单项选择题

对借款人进行贷后监控的过程中，对“人及其行为”的调查是（）监控的特点。

A.经营状况

B.管理状况

C.财务状况

D.与银行往来情况
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