用一个5倍的放大镜看一个15度的角,这个角是多少度?
用一个5倍的放大镜看一个15度的角,这个角是多少度?
数学人气:106 ℃时间:2019-10-11 20:05:36
优质解答
还15度采纳一下吧
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