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1 . 如图为国家统计局
年
月
日发布的
年各季度社会消费品零售总额及增速,则下列说法:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/15/a0ad2900-e809-4743-9e67-ef94a0b7c7fd.png?resizew=367)
①各季度社会消费品零售总额增速最快的是
季度;
②各季度社会消费品零售总额增速最快的是
季度;
③各季度社会消费品零售总额增量最大的是
季度;
④各季度社会消费品零售总额增量最大的是
季度.
其中所有正确说法的序号为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/151e5633a5d0cc30b254167e3dda5803.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be7581dbbccda50e5d5cd18056ddea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/701554763bdbbf2689a8dae07608da38.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/15/a0ad2900-e809-4743-9e67-ef94a0b7c7fd.png?resizew=367)
①各季度社会消费品零售总额增速最快的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
②各季度社会消费品零售总额增速最快的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
③各季度社会消费品零售总额增量最大的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
④各季度社会消费品零售总额增量最大的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
其中所有正确说法的序号为( )
A.①④ | B.②③ | C.①③ | D.②④ |
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3卷引用:全国2021届高三高考数学(文)演练试卷(一)
2 . 已知函数
,下列关于函数
的说法中:
①
是
的一个周期; ②
是偶函数;
③
的图象关于直线
对称; ④
的最小值是
.
其中所有正确说法的序号为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a7472db6047d40b933546a56142ebf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9fdc1f8ed0ae44b54a9a2a3aca2db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a2ec02caf837c6e7e0b76dd9acc7f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e18f579689718c3fd3ff23a4c46f1ce3.png)
其中所有正确说法的序号为( )
A.①② | B.①④ | C.②③④ | D.①②④ |
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3 . 已知平面
平面
,直线
平面
,直线
平面
,
,在下列说法中,
①若
,则
;②若
,则
;③若
,则
.
正确结论的序号为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa807136194c18d3ac58902c67f9333.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d983307d4345e724d9dd44935274843d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b02e0c74a66739bc83f73b5c5513cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40b707f5ee4fbb2e637c65fbc6d8ed03.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b6e422b2e6f6dada4d8c369559a077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb26a220ed44c446105df7caa0f1063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb26a220ed44c446105df7caa0f1063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b610e3c5b3d78a5730e7f3d736ac28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b610e3c5b3d78a5730e7f3d736ac28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b6e422b2e6f6dada4d8c369559a077.png)
正确结论的序号为( )
A.①②③ | B.①② | C.①③ | D.②③ |
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2020-03-07更新
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3卷引用:江苏省镇江市扬中市第二高级中学2020-2021学年高一下学期期末模拟数学试题
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解题方法
4 . 某重点高中110周年校庆学校安排了分别标有序号为“1号”“2号”、“3号”的三辆车,等可能的随机顺序前往酒店接嘉宾.某嘉宾突发奇想,设计了两种乘车方案.方案一:不乘坐第一辆车,若第二辆车的序号大于第一辆车的序号,就乘坐此车,否则乘坐第三辆车;方案二:直接乘坐第一辆车.记方案一与方案二乘坐到“3号”车的概率分别为
,
,则
,
分别为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
A.![]() ![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
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4卷引用:湖北省东南联盟2021-2022学年高二上学期10月联考数学试题
湖北省东南联盟2021-2022学年高二上学期10月联考数学试题湖北省黄冈市红安县第一中学2022-2023学年高二上学期9月月考数学试题河北省石家庄市第二十二中学2023-2024学年高二上学期期末数学模拟试卷(已下线)专题11 概率归类(2) -期末考点大串讲(苏教版(2019))
5 . 已知:① 函数
有且仅有一个零点;② 在
中,若
,则
;③抛物线
的焦点坐标为
;④不等式
恒成立,则上面结论错误的序号为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37aa94fb49142178126bf4d6730af798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca51be437b1a97ca92aa1159ab71102c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19dc38d888741a1b2e95fe0773a48c38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380c8ff22997421404c4f0d0708ab126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29881e55e3dd8760966a415648a556b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccbe0d2108648e69fcddab17c20d1763.png)
A.① | B.② | C.③ | D.④ |
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解题方法
6 . 设
,
,
为不重合的平面,
,
为不重合的直线,则下列说法正确的序号为( )
①
,
,则
;
②
,
,
,则
;
③
,
,
,则
;
④
,
,
,则
.
![](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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
①
![](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/202af51f5ebe87ec0017f439a6ad7fbf.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe920cd78db25f5b4df37d066e57800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53cd751c44ad4d9ebd8e3243e751321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b6e422b2e6f6dada4d8c369559a077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3bdd7a1a12d66a8b32e239fd6886a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b6e422b2e6f6dada4d8c369559a077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b610e3c5b3d78a5730e7f3d736ac28.png)
④
![](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/92c166c4d75211e5294eb440bf2a6350.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/008241f4c7f47526109c74c92ed21fdb.png)
A.①③ | B.②③ | C.②④ | D.③④ |
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浙江省北斗星盟2021届高三下学期5月适应性联考数学试题江苏省镇江市第一中学2021-2022学年高二上学期期中数学试题(已下线)第15课时 课中 平面与平面垂直的性质(已下线)8.6空间直线、平面的垂直A卷(已下线)专题9.立体几何与空间向量 -《2022届复习必备-2021届浙江省高考冲刺数学试卷分项解析》(已下线)考点16 空间向量与立体几何-2022年高考数学一轮复习小题多维练(新高考版)(已下线)2020年高考浙江数学高考真题变式题6-10题(已下线)热点06 空间位置关系的判断与证明-2022年高考数学【热点·重点·难点】专练(全国通用)天津市河西区2021-2022学年高三上学期期末数学试题陕西省西安中学2022-2023学年高二上学期第二次月考理科数学试题4.4.2 平面与平面垂直的性质
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7 . 下列说法中,所有正确的命题序号为( )
①在同一坐标系中,函数
与函数
的图象关于
轴对称;
②函数
(
且
)的图象经过顶点
;
③函数
的最大值为1;
④任取
,都有
.
①在同一坐标系中,函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b161347f6a2fcfd9bf0acf1e8a03fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/996a92bcfc7fb20171fa1768d5ffddb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa80ae0b0eab1f14cccf872500f0843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2e1bb3e70e20280047d9b6c546dd16.png)
④任取
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbf7a904df8f22e3f1e26a4116eb7913.png)
A.①②③④ | B.② | C.①② | D.①②③ |
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8 . 下列说法正确的序号为( )
①若
,则
;
②若
,则
;
③若a>b,c>d,则
;
④若
,c<0,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/288420f0b137ec90d963e6b5db65fe30.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a44d971fdc197191b4a7c2b3716e84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f7c54faca6eac8af5309942062058d.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa8950fa963eedb948d6a57871478cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/125415eb6733489cdc96ee48eb88aee7.png)
③若a>b,c>d,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27f50ce6b511e6b928796e048fc7fa5c.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/288420f0b137ec90d963e6b5db65fe30.png)
A.①② | B.②③ | C.①④ | D.③④ |
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解题方法
9 . 以下几种说法
①命题“∃a>0,使函数f(x)=ax2+2x﹣1只有一个零点”为真命题
②命题“已知x,y∈R,若x+y≠3,则x≠2或y≠1”是真命题
③“x2+2x≥ax在x∈[1,2]恒成立”等价于“对于x∈[1,2],有(x2+2x)min≥(ax)max”
④△ABC的内角A,B,C的对边分别为a,b,c,则“a>b”是“cos2A<cos2B”的充要条件.
其中说法正确的序号为( )
①命题“∃a>0,使函数f(x)=ax2+2x﹣1只有一个零点”为真命题
②命题“已知x,y∈R,若x+y≠3,则x≠2或y≠1”是真命题
③“x2+2x≥ax在x∈[1,2]恒成立”等价于“对于x∈[1,2],有(x2+2x)min≥(ax)max”
④△ABC的内角A,B,C的对边分别为a,b,c,则“a>b”是“cos2A<cos2B”的充要条件.
其中说法正确的序号为( )
A.①③ | B.①④ | C.②③ | D.②④ |
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解题方法
10 . 已知
直线,
是平面,给出下列说法,其中正确的说法序号为( )
①若
,则
或
;
②若
,则
;
③若
不垂直于
.则
不可能垂直于
内的无数条直线;
④若
且
,则
且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ba63ad02b1d5af2982fac3d91eb15c.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8c1b755be4ad1b0999070ef79d7bd02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b59b1a01a6da42ff2a41e5b91ea301ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53cd751c44ad4d9ebd8e3243e751321.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd3ef9f7bb4d2ab64c4c713d6ace64d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac3c0daa473ebcef025bf44e46bfd963.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dbf7172403709a1dd33a2a183f95f55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f84e2761ae07f726d789e4f3ca4b62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df0d37b44de48de51555fa95d94e33f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d6ca6fed060a95127579051f7a6b79.png)
A.①② | B.②③ | C.③④ | D.②④ |
您最近一年使用:0次