如图,在直三棱柱
中,
,
,
,
,
分别为
,
,
的中点.则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb717228e1762d335814a3adc90eae45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/1/41ebf9db-8ac8-4056-8dd3-8868c0a6b116.png?resizew=161)
A.直线![]() ![]() ![]() |
B.平面![]() ![]() ![]() |
C.![]() ![]() ![]() |
D.直线![]() ![]() ![]() |
更新时间:2023-10-14 15:51:35
|
相似题推荐
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适中
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解题方法
【推荐1】在棱长为1正方体
中,点P为线段
上异于端点的动点,( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
A.三角形![]() ![]() |
B.直线![]() ![]() |
C.二面角![]() ![]() |
D.过点P做平面![]() ![]() ![]() ![]() |
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【推荐2】如图,正三棱柱
中,底面ABC是边长为2的等边三角形,
,D为BC中点,则( )
![](https://img.xkw.com/dksih/QBM/2022/3/8/2931964685918208/2934912638844928/STEM/e6dcd4f7-b906-4cfa-8aa5-ed0a58870931.png?resizew=144)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d927585a17c2e98ef7d5a9589a26ac.png)
![](https://img.xkw.com/dksih/QBM/2022/3/8/2931964685918208/2934912638844928/STEM/e6dcd4f7-b906-4cfa-8aa5-ed0a58870931.png?resizew=144)
A.直线![]() ![]() |
B.点![]() ![]() ![]() |
C.异面直线![]() ![]() ![]() |
D.设P,Q分别在线段![]() ![]() ![]() ![]() |
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解题方法
【推荐1】已知直三棱柱
中,
,
,O为
的中点.点P满足
,其中
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea6ff6a807f5639faac835012b3728c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c30ef886a92a8e233690dacef4e3438.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afe62a251f3d6dfb60ba2a42bdda534c.png)
A.对![]() ![]() |
B.当![]() ![]() ![]() |
C.当![]() ![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() |
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【推荐2】如图,在棱长为2的正方体
中,
为侧面
上一点,
为
的中点,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebb05874eb3353d754af24c9974273e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
A.若点![]() ![]() ![]() |
B.若点![]() ![]() ![]() ![]() ![]() |
C.不存在点![]() ![]() |
D.![]() ![]() ![]() |
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解题方法
【推荐1】长方体
中,底面
是边长为2的正方形,
,则下述结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad1a56baf43ffdf67bc8460856e31fec.png)
A.若点![]() ![]() ![]() ![]() ![]() |
B.若点![]() ![]() ![]() ![]() ![]() |
C.若点![]() ![]() ![]() ![]() ![]() ![]() |
D.若点![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
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解题方法
【推荐2】如图,正方体
的棱长为2,E为
的中点,P为棱BC上的动点(包含端点),则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/2/560a9267-5cd9-4079-b4a2-26729ecc02d7.png?resizew=168)
A.存在点P,使![]() |
B.存在点P,使![]() |
C.四面体![]() ![]() |
D.二面角![]() ![]() |
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解题方法
【推荐1】如图,在棱长为2的正方体
中,
分别为
的中点,则下列选项正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/17/048179c5-6a2e-44a2-9649-377cfeadd716.png?resizew=168)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b323ecfca28fb7da92643357158b3e8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/17/048179c5-6a2e-44a2-9649-377cfeadd716.png?resizew=168)
A.直线![]() ![]() |
B.直线![]() ![]() ![]() |
C.直线![]() ![]() ![]() |
D.直线![]() ![]() ![]() |
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适中
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【推荐2】下列命题中,正确的是( )
A.直线![]() ![]() ![]() ![]() ![]() |
B.向量![]() ![]() ![]() ![]() ![]() |
C.向量![]() ![]() ![]() |
D.平面![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次