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问题详情

设α=i+2j+3k，β=i-3j-2k，与α、β都垂直的单位向量为（）。

A、A

B、B

C、C

D、D

时间：2021-09-05 19:45 关键词：第一章数学电气工程公共基础

答案解析

D

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