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问题详情

投影器投影成像的位置决定于( )

A、反射镜

B、凸透镜(放映物镜)

C、菲涅尔透镜

D、新月镜

时间：2021-09-01 23:38 关键词：青书学堂黑龙江省教育学院现代教育理论（高起专）教育学（函授）专升本现代教育理论平时作业2

答案解析

A

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