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1 . 以下说法正确的是( )
A.若直线![]() ![]() ![]() ![]() ![]() |
B.若平面![]() ![]() ![]() ![]() ![]() ![]() |
C.若直线![]() ![]() ![]() |
D.平面![]() ![]() ![]() ![]() ![]() |
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2 . 已知平面
,直线
平面
,则“
”是“
与平面
所成角相等”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e27c884a8a1ab7acd3988a9114044a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72fbc714c63815dad9a27418f6492f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62ff2912fd8d93b6e692936d95b727c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.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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3 . 以下四个函数中,在
上为减函数,且以
为周期的偶函数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b009a12dacb59d0ed3530d16a7c9d5fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 点
位于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcccf60bffd152b5b6b94af86dd694d0.png)
A.第一象限 | B.第二象限 | C.第三象限 | D.第四象限 |
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5 . 定义在
上的函数
在区间
上单调递增,且
的图象关于直线
对称,则下列结论不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3456f29228827b0fc367b18663af2427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2be344d1925b25e44f3f8b34d2c193ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
A.![]() | B.若![]() ![]() |
C.![]() | D.![]() |
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6 . 已知
是数列
的前n项和,
,
,数列
是公比为2的等比数列,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2693734765399876e9e93cdb110231c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a08e8f55fd89599ba2d83defd737e0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5af1f1b7e9e20d799ee3c06b89a0611c.png)
A.1364 | B.![]() | C.118 | D.124 |
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7 . 执行如图所示程序框图,若输出的S值为
,则判断框内应填写( )
![](https://img.xkw.com/dksih/QBM/2022/7/11/3020423436312576/3022597281759232/STEM/5cc1a4d8d27049e59193ebf4420e6dde.png?resizew=143)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a62045ce199e0796b3a6b8f2708cfd28.png)
![](https://img.xkw.com/dksih/QBM/2022/7/11/3020423436312576/3022597281759232/STEM/5cc1a4d8d27049e59193ebf4420e6dde.png?resizew=143)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bb128f366dc74191afc4e038fa0a80e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/738eda45af04d35d901b955af9d807de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 若定义在R上的函数
满足:
,
,则
取最小值时k的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b24e3d5a9cf033ad7b90ea13ed140f12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80573292bf544819106d4012d01922a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a3641e9d0733c1dbbc8af7e25bf6c.png)
A.4 | B.5 | C.6 | D.7 |
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解题方法
10 .
是定义在R上的偶函数,且
,
时,
,则函数
在区间
上零点的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/621f1e1a9e75ffbd8e4ada7d261ad662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d58567d3cb3137e68b7ff1671cd8433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9025dcb2d39eb4bb26afd99e01616254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e4ac75062c532bfa43a716d060a2786.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95ebd792dc88a06293575b0a0b1c0d9e.png)
A.2021 | B.4043 | C.2020 | D.4044 |
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