衡量社会资源配置效率状况的指标有（）A.消费者剩余 B.生产者剩余 C.社会总剩余

( ) 1．in the classroom       
( ) 2．Nice to see you.       
( ) 3．Hello.                 
( ) 4．Write, write, write.   
( ) 5．Draw, draw, draw.      
( ) 6．Cut, cut, cut.         
( ) 7．in the office        

A．喂!                
B．画，画，画。         
C．在教室                                                                                  
D．在办公室         
E．见到你很高兴。    
F．写，写，写。      
G．剪，剪，剪。