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问题 单项选择题

二极管、三极管是用（）材料制成的。

A、半导体

B、导体

C、超导体

D、绝缘体

答案

参考答案：A

补全对话，情景问答
Read and match.（读一读，连线）
( )1. Where is the art room？    
( )2. What time is it?            
( )3. What colour are your jeans?
( )4. Is this your jacket?        
( )5. What are they?              		A. They are brown.            
B. No, it isn't.              
C. It's on the second floor.                                                         
D. They are your pants.      
E. It's eleven o'clock.      
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单项选择题

We have pleasure in ( )you an order for Cosmetics.

A．send

B．getting

C．sending

D．get
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