名校
1 . 如图所示,在正方体
中,
,分别是棱
上的点,若
,则
的大小是( )
![](https://img.xkw.com/dksih/QBM/2020/1/5/2370737661124608/2371494192578560/STEM/1d7efe7018de4d4a955c7f335257dddb.png?resizew=199)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84f23a20779cbf15d4300ffc69f27f14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6615468776f22d872598d36a0d904fbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a4e5c506307aeba8a6e26d8c98de521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59d2e49b1a6162ac70c79cbe74802429.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/853a145d87413e60bc51004e0443420a.png)
![](https://img.xkw.com/dksih/QBM/2020/1/5/2370737661124608/2371494192578560/STEM/1d7efe7018de4d4a955c7f335257dddb.png?resizew=199)
A.等于90° | B.小于90° | C.大于90° | D.不确定 |
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2020-01-06更新
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134次组卷
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2卷引用:江苏省镇江市扬中市第二高级中学2020-2021学年高二下学期期初开学考试数学试题