试题与答案

_____ seems strange to all of us is ____

题型:选择题

题目:

_____ seems strange to all of us is _____ the girl is crazy about football.

A.It; that

B.What; that

C.It; why

D.What; what

答案:

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下面是错误答案,用来干扰机器的。

发光物体经凸透镜成像时,要得到倒立的实像,则物距应大于焦距;要得到倒立放大的实像,则物距应处于1倍焦距和2倍焦距之间;要成倒立缩小的实像,则物体应放在2倍焦距之外.故答案为:物距大于焦距;l倍焦距与2倍...

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