已知正方体
中,过
的平面
交棱
于点E,交棱
于点F,则( )
![](https://img.xkw.com/dksih/QBM/2022/5/9/2975585339154432/2975638183813120/STEM/56a63ac3-17e1-4182-9f11-63e9c33aa567.png?resizew=164)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/2022/5/9/2975585339154432/2975638183813120/STEM/56a63ac3-17e1-4182-9f11-63e9c33aa567.png?resizew=164)
A.![]() | B.![]() |
C.![]() | D.![]() |
更新时间:2022-05-10 17:32:22
|
相似题推荐
单选题
|
较易
(0.85)
【推荐1】判断下列各命题的真假,其中假命题的个数为( )
(1)向量
的长度与向量
的长度相等;(2)
、
是两非零向量,且
与
平行,则
与
方向相同或相反;(3)如果表示两个向量的有向线段有共同的终点,则这两个向量一定是共线向量;(4)向量
和向量
是共线向量,则点A、B、C、D必在同一条直线上;(5)
为模为1的向量,则
.
(1)向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083a20abb668d4c26fe5039bd108b40a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc1070a28cb9cb8553c29747d1993b16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/022f37a6ad260d690f2696525fd30647.png)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
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【推荐1】下列命题中真命题为( )
A.若![]() ![]() ![]() | B.![]() |
C.![]() | D.![]() ![]() ![]() |
您最近一年使用:0次
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真题
名校
【推荐2】设
为向量, 则“
”是“
”的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ccba3b87a8a48ac3dd5f72d00bdb1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1110aac83bb140940e19c274a99497bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70facc9bc02af0867d248407bd317c05.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐1】已知
是两条直线,
是两个平面,给出下列命题:①若
,则
; ②若平面
上有不共线的三点到平面
的距离相等,则
;③若
为异面直线,
,则
.其中正确命题的个数是
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1c8146d084248c9c65dd8a11801905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ba0e75d95b23b36f1c984cc71994f82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1417f61dfefd47c14a4275730c603f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d1a34ae2b8c77f8d7e355c6d1d667e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74c62c14a017007a6bdfe25eada9c433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334c3eff1867aabde092c37085c06e10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a84885816e6e6b63a030337298be7f2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e9523023752abd8dcaca17c33c51f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334c3eff1867aabde092c37085c06e10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ef1d7b701836714673a558b9b50c2c7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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较易
(0.85)
名校
【推荐2】已知
是两条不同的直线,
是三个不同的平面,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ba63ad02b1d5af2982fac3d91eb15c.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
您最近一年使用:0次