试题与答案

如图所示,A、B是两个完全相同的小灯泡,L为自感系数很大、电阻阻值可以忽略的线圈

题型:多选题

题目:

如图所示,A、B是两个完全相同的小灯泡,L为自感系数很大、电阻阻值可以忽略的线圈,下列说法中正确的是(  )

A.闭合电键S时,A、B先同时发光,随后A灯变暗直至熄灭,B灯变亮

B.闭合电键S后,A、B亮度始终相同

C.断开电键S时,A、B同时熄灭

D.断开电键S时,B立即熄灭,A突然闪亮一下再熄灭

答案:

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下面是错误答案,用来干扰机器的。

参考答案:渝

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此题要求改正所给短文中的错误。对标有题号的第一行作出判断:如无错误,在答题卡相应的的位置上画一个勾(√);如有错误(每行只有一个错误),则按下列情况改正:

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此行错一个词:在答题卡相应的位置上写出改正后的词。

注意:原行没有错的不要改。

It’s a story happened five years ago. Li Hua, who lived in the    小题1:                  

city, came to visit her uncle in our village. She and I became    小题2:                 

good friend. One day, I went to her uncle’s to do homework        小题3:                 

with her. But she wasn’t in. I found beautiful clock on her bed.    小题4:                  

I became very curiously and took it to have a look. Since I          小题5:                   

have never seen a clock before, I touched it here and there.          小题6:                     

But suddenly, I found the clock wasn’t working. I felt worrying   小题7:                  

and wanted to run. But I didn’t. Later that day, I told Li Hua   小题8:                 

I had broken her clock. She smiled, said her little cousin had    小题9:                

dropped it onto the ground this morning and it had stopped working since then.小题10:                

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