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问题 单项选择题 B型题

氮氧化物（）

A.易溶于水，主要伤眼结膜和上呼吸道

B.难溶于水，能进入呼吸道深部

C.经肺泡进入血液后，与血红蛋白结合

D.对上呼吸道刺激，对牙齿引起牙酸蚀症

E.是二氧化氮的二次污染物，具有强烈的刺激作用

答案

参考答案：B

完形填空
完形填空。
     Bruce meets Liu Jianguo outside the school. What are they talking about? Let's see.
Bruce: __1__ this Sunday?
Liu Jianguo: I'll go to see my mother with my sister.
Bruce: __2__ come back.
Liu Jianguo: At about four o'clock in the afternoon. But __3__?
Bruce: We'll __4__ our project together. __5__?
Liu Jianguo: That's great! I'd like to. __6__ it start?
Bruce: At three o'clock.
Liu Jianguo: OK, I __7__ be back before three o'clock.
Bruce: __8__ I __9__ you?
Liu Jianguo: How about waiting for me in the school library?
Bruce: All right. __10__.
Liu Jianguo: See you!
( )1. A. What are you going
                 to do
( )2. A. When do you            
( )3. A. why                    
( )4. A. works on                
( )5. A. Did you like to come    
( )6. A. When do                
( )7. A. will                    
( )8. A. Where will              
( )9. A. waits for              
( )10. A. See you                
B. What do you
     do          
B. When will you          
B. why not                
B. work on                
B. Would you like to come  
B. When will              
B. do                      
B. When will              
B. waiting for            
B. Okay                    		C. What did you
     do
C. Where will you
C. how            
C. to work on    
C. Maybe you come
C. When          
C. did            
C. What will      
C. wait for      
C. Good night     		D. What are
     you  
D. When did you  
D. how much      
D. worked on    
D. Does he come  
D. When did      
D. was          
D. Where did    
D. waited for    
D. Good evening  
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多项选择题

期货交易所工作人员不得（）。

A.购买商业银行发售的纸黄金产品

B.从事期货交易

C.通过商业银行购买开放式基金

D.泄露内幕消息
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