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光垂直入*到平面镜上,反*角为········································...

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问题详情:

光垂直入*到平面镜上,反*角为········································...

光垂直入*到平面镜上,反*角为····································································· (   )

A.0°                     B.30°                   C.45°                   D.90°

【回答】

A

知识点:未分类

题型:未分类