问题 单项选择题

性能良好的二极管是().

A.正向电阻小、反向电阻大

B.正向电阻大、反向电阻小

C.正向电阻、反向电阻都小

D.正向电阻、反向电阻都大

答案

参考答案:A

写作题

看图写句。

根据每题所提供的情景和提示词写一个与图画内容相符的句子。(要求用上提示词)

    

           1                        2                        3                           4                          5

1. (Jane, like)                                                                                                                  

2. (good, eat)                                                                                                                  

3. (we, tomorrow)                                                                                                           

4. (Jack, now)                                                                                                                 

5. (Lily, school, yesterday)                                                                                                

多项选择题