在空间中,已知直线
的方向向量为
,平面
的法向量为
,则“直线
与平面
相交”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fbda256c4b0a5e29212742f5b9f2499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be678a969afd1eb7be0d9845a85fcbca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abb0cf3dfcff7cc876ae9dc276956514.png)
A.充分而不必要条件 | B.必要而不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
更新时间:2020-12-06 23:51:38
|
相似题推荐
单选题
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【推荐1】若
,则“
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b73abfe4bc26b1ded680d7abb1a2cac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e56f4504e0f80fd031c8b5f41832e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4944b18a1daae0480089124e5551107f.png)
A.充分不必要条件 | B.必要不充分条件 | C.充要条件 | D.既不充分也不必要条件 |
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【推荐2】下列说法正确的是( )
A.![]() ![]() |
B.![]() ![]() |
C.设![]() ![]() ![]() |
D.![]() ![]() ![]() ![]() |
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【推荐1】在空间中,设m、n是两条直线,α、β表示两个平面,如果m⊂α,α∥β,那么“m⊥n”是“n⊥β”的( )条件
A.充分不必要 | B.必要不充分 |
C.充要 | D.既不充分也不必要 |
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【推荐2】如果命题“
”是真命题,那么①
是
的充分条件 ②
是
的必要条件 ③
是
的充分条件 ④
是
的必要条件
,其中一定正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc28e186f8e5e98ba803fe35d358bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25bdf3e032283a641ae2ab94fdc9bba6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25bdf3e032283a641ae2ab94fdc9bba6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f2307a084345095a643b5ed287c9fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f2307a084345095a643b5ed287c9fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/739c4e1ef996cb71a660dd1898d1c68f.png)
A.①③ | B.①④ ![]() | C.②③ | D.②④ |
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解题方法
【推荐1】设
,
,
是互不重合的平面,m,n是互不重合的直线,给出下面四个命题:
①若
,
,则
;②若
,
,则
;
③若
,
,则
;④若
,
,
,则
.
其中所有正确命题的序号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d35a45cfcdfbda18b089ce6698ccdbcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b82e5d28e2e5a4790e94db2daa6a07c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b303b1f07604f5303aea94df7f0518e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe920cd78db25f5b4df37d066e57800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b610e3c5b3d78a5730e7f3d736ac28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b303b1f07604f5303aea94df7f0518e9.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58645e141cf81e1962ec8692e5edbfa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b59b1a01a6da42ff2a41e5b91ea301ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0205571fa39f343ee5749b78d466bf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/832c0ded6db3b629359e7dcf32ba0c95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39344e476725f3fbae35f2e73377a38b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53cd751c44ad4d9ebd8e3243e751321.png)
其中所有正确命题的序号是( )
A.①② | B.② | C.④ | D.②③ |
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解题方法
【推荐2】已知直线
平面
,直线
平面
,有下面四个命题,其中正确的命题是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9df740160690029ac1e730c85f20347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d983307d4345e724d9dd44935274843d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
【推荐1】已知四面体A-BCD的所有棱长都是2,点E,F分别是AD,DC的中点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/573891d55ff0151c42d298b498ef6515.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/573891d55ff0151c42d298b498ef6515.png)
A.1 | B.-1 | C.![]() | D.![]() |
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【推荐2】对于任意空间向量
,
,
,下列说法正确的是( )
![](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/73a0b19e69be46452425916a0fcb49c9.png)
A.若![]() ![]() ![]() | B.![]() |
C.若![]() ![]() ![]() | D.![]() |
您最近一年使用:0次