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问题 选择题
据调查，某自行车存车处在某星期日的存车量为4000辆次，其中变速车存车费是每辆一次0.30元，普通车存车费是每辆一次0.20元．若普通车存车数为x辆次，存车费总收入为y元，则y关于x的函数关系式是（　　）
A．y=0.10x+800B．y=0.10x+1200
C．y=-0.10x+800D．y=-0.10x+1200
答案

答案：D

多项选择题

大动脉炎影像学方面的检查包括（）

A.彩色多普勒超声

B.血管造影

C.CT

D.MRI

E.红细胞沉降率和血C-反应蛋白
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改错题
改错题。
1. Lily and Liz has a cat. They like it very much.
                       A                    B   C   D                 
2. Are you have  any ping pong balls?              
    A           B       C                   D                        
3. I like to watch football games at TV.          
      A           B                  C      D                        
4. He don’t play baseball.                      
     A   B      C    D                                  
5. —Do you have a TV?                            
        A          B                                       
  —Yes, we have.                                 
       C          D                                      
6. We have eight watchs.                          
     A     B    C      D                                   
7.  I am not have a watch.                          
    A   B         C      D                                 
8.  Let’s to go to play football.                 
      A       B      C        D                                		__________  
            
__________  
            
__________  
            
__________  
            
__________  
           
__________  
            
 __________ 
            
 __________ 
            
 __________  
            
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