问题 多选题

在电学实验连接电路的过程中,下列操作正确的是 _________ [ ]

A、开关应该是断开

B、向电路中连接变阻器时,应将滑片位于使变阻器阻值电小的位置

C、接线可以从电源“﹣”极开始连接

D、电压表不能直接接在电源两极上.

答案

AC

完形填空
完形填空。
     Have you ever heard of a girl of 15, who set up a company of her own? Wendy Wong is the girl. She
started the business two years ago. She has already    1    several successful computer games. They are
so    2    that over half a million games are sold every year. Now all of her family work in her business,
and she is    3    at school.
     She gets up early in the morning, and then talks with her family about the    4    over breakfast. Every
day during weekdays, she goes to school in her own car with a    5  , for she is not old enough.
     She enjoys her school, but some of the work is too easy for her to feel    6   . She usually gets "A"
grades in all her    7   . So the other students often ask her for    8   . She finished her homework in half
an hour after her driver takes her home. After dinner, she goes to her office and    9    working on her
computer writing games until 2 a.m.
     She does not usually need so much   10     as other children.
( )1. A. worked  
( )2. A. afraid  
( )3. A. still  
( )4. A. lessons
( )5. A. doctor  
( )6. A. interested
( )7. A. subjects
( )8. A. money  
( )9. A. goes on
( )10. A. food  
B. played      
B. popula      
B. hardly      
B. friends    
B. teacher    
B. interesting
B. family    
B. help      
B. finds out  
B. sleep      
C. written    
C. expensive  
C. often      
C. exams      
C. driver    
C. uninterested
C. friends    
C. grades    
C. stops      
C. fruit      
D. bought        
D. surprised    
D. sometimes    
D. business      
D. visitor      
D. uninteresting
D. home          
D. results      
D. hurries      
D. pleasure      
选择题