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1 . 如图,在棱长都为1的平行六面体
中,
,
,
两两夹角均为
,则有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff7ddbb49c644bf06ccbad885ba2c84a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fe2d802f2b37e7db198c5a3c1df9a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/228f4ddbb8959f904d71259be7c6ab36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89a5a1abb6d0c0a4829759ca7b8912c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926d1308d5db144e31b4d0211c63ef52.png)
A.![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() |
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2022-10-20更新
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4卷引用:新疆乌苏市第一中学2022-2023学年高二上学期线上第二次月考数学试题