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问题 单项选择题

“位”(bit)是计算机的最小信息单位，一般把连续的 (30) 称为一个字节(Byte)。

A．4位

B．8位

C．10位

D．16位

答案

参考答案：B

解析： 字节是计算机中存储数据的基本单位，8个二进制位编为一组称为一个字节。

完形填空
完型填空。

     I stopped to watch my little girl busy playing in her room. In one hand was a plastic   1  ; in the other a
toy broom. I listened as she was speaking to her make-believe little friend and I’ll never forget the words
she said, even   2  it was a pretense.
     She said, "Suzie’s in the corner because she’s not been very  3  . She didn’t listen to a   4   I said or do the things she should." In the corner I saw her baby doll all dressed in lace and pink. It was   5  she’d been put there to sit alone and   6  .
     My daughter   7  her “conversation”, as I sat down on the floor. She said, “I’m all fed up. I just don’t
know what to do with her any more. She cries whenever I have to work and wants to play games, too.
She never   8  me do the things that I just have to do.
     She tries to help me with the dishes, but her arms just cannot   9  . And she doesn’t know  10  to fold
towels. I don’t have the  11   to teach. I have a lot of work to do and a big house to keep clean. I don’t
have the time to sit and play-  12  what I mean?”
     And that day I thought a lot about making some   13  in my life, as I listened to her   14 words that cut me like a knife. I hadn’t been payi ng enough attention to what I hold most  15  . I’d been caught up in
responsibilities that increased throughout the year.
     But now my  16   has changed, because, in my heart, I realize that I’ve seen the world in a different  17  through my little darling’s eyes. So, let the cobwebs（蜘蛛网  18 the corners and the dust bunny rabbit
rule the floor. I’m not going to worry about keeping up with them 19  .
     I’m going to fill the house with 20  of a child and her mother, for we are granted only one childhood,
and we will never get another.

( )1.A.lamp        
( )2.A.then        
( )3.A.gentle        
( )4.A.word        
( )5.A.possible      
( )6.A.recover      
( )7.A.continued    
( )8.A.has          
( )9.A.reach        
( )10.A.what        
( )11.A.ability      
( )12.A.mind        
( )13.A.influences  
( )14.A.innocent    
( )15.A.clever      
( )16.A.purpose      
( )17.A.glance      
( )18.A.have        
( )19.A.either      
( )20.A.conversations		B.camera      
B.as          
B.good      
B.story      
B.obvious  
B.pretend  
B.stopped  
B.helps    
B.settle    
B.whether   
B.duty    
B.see       
B.changes
B.casual    
B.heavy  
B.principle
B.light    
B.manage    
B.any more
B.messages		C.hammer       
C.though      
C.happy         
C.joke          
C.common      
C.think      
C.repeated    
C.makes         
C.arrive        
C.why           
C.energy      
C.feel          
C.plans        
C.generous    
C.dear        
C.destination  
C.focus        
C.make          
C.neither      
C.imaginations 		D.phone      
D.so          
D.helpful      
D.sentence      
D.unusual      
D.regret      
D.interrupted  
D.lets        
D.handle    
D.how        
D.reason    
D.learn      
D.troubles  
D.humorous  
D.lovely     
D.attitude 
D.impression
D.stop      
D.anywhere 
D.Memories                
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选择题

在密闭容器中进行反应：X(g)＋3Y(g)2Z(g)，下列说法正确的是 (　　)

      

A．左上图说明正反应为吸热反应

B．反应达平衡后，增大压强气体密度将减小

C．右上图可表示升高温度使平衡向逆反应方向移动

D．右上图虚线可表示使用催化剂后引发的反应速率变化
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