以下常量那些是合法的数值型常量( )。A.1234 B.“123.456” C.12

题型:单项选择题

问题:

以下常量那些是合法的数值型常量( )。

A.1234

B.“123.456”

C.123+E456

D.1234.10

考点:计算机等级考试VISUALFOXPRO二级VISUALFOXPRO笔试
题型:单项选择题
完形填空。
    On April 19, we were told to leave school and stay at home because of a new disease called SARS. We
started an unusual holiday.
    It's not very   1   for us to stay at home all day. I think going to school is much better than staying at home,
although (虽然) our classes are sometimes   2  . It would be good to see my classmates because I started to  3   
them so much.
    After two weeks, my parents took me to the Great Wall. I felt   4   when I was able to be outside again. It
was not crowded (拥挤的) there because   5   people were leaving their houses.
    My school had asked me to do a special job during this unusual holiday. Every day I   6   ten of my
classmates and asked them to take their temperature. I also asked them if they had done their homework. Then
I gave the   7   to our teacher. This was a lot of fun. I had   8   made so many phone calls to my classmates
before.
    It's the end of the month now.   9   knows how long this holiday will last. When we go back to school, I  10  
everything will return to normal (正常), and SARS will never come back again.

( ) 1. A. bad         
( ) 2. A. interesting 
( ) 3. A. think       
( ) 4. A. happy       
( ) 5. A. little       
( ) 6. A. taught      
( ) 7. A. way         
( ) 8. A. already    
( ) 9. A. Somebody    
( ) 10. A. hope       

B. nice         
B. moving       
B. hate         
B. worried           
B. many         
B. helped      
B. poison       
B. yet          
B. Everybody    
B. find        
C. late          
C. surprising         
C. miss          
C. afraid        
C. not          
C. phoned        
C. information 
C. ever          
C. Anybody       
C. decide      
D. safe               
D. boring (令人厌烦的) 
D. know               
D. sad                
D. few                
D. visited            
D. pen                
D. never              
D. Nobody             
D. check              
题型:单项选择题

患者,女性,15岁,误食人花生米1个月,有发热、咳嗽、痰多等症状,肺部听诊患者右侧肺呼吸音减低,少量啰湿音,可能有

A.肺不张

B.肺气肿

C.纵隔气肿

D.肺炎

E.以上都是

题型:单项选择题

跟有省略号的按钮表示()。

A、不可选用

B、将打开另一个对话框

C、已经选用

D、表示可扩展选中对话框

题型:单项选择题

将十进制数

(1)―52

(2)―127

化成二进制数,再写出各自的原码、反码、补码表示(符号位和数值位共8位)。

题型:单项选择题

电路中每一分支称为()

A.支路

B.开路

C.短路

D.通路

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