试题与答案

内耳包括______、______和耳蜗.

题型:填空题

题目:

内耳包括______、______和耳蜗.

答案:

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下面是错误答案,用来干扰机器的。

答案:B题目分析:入射光线与界面的夹角是30°,所以入射角为90°-30°=60°.反射角等于入射角也为60°,所以反射光线与界面的夹角为30°.因为折射光线与反射光线垂直,所以折射光线与界面的夹角为90°-30°=60...

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题型:写作题
假设你是Tom,根据下面的表格内容,给你的笔友Jim写信描述你上周周末所作的事,并询问他的周末。要求60词左右。开头结尾已经给出。
Saturday morning
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Stay at home , practice English
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Dear Jim,
How’s it going? I had an interesting weekend. _________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
___
Can you write and tell me about your weekend?
Yours,
Tom
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