1 . 如图,在平面直角坐标系中,设一质点
自
处向上运动
个单位至
,然后向左运动
个单位至
处,再向下运动
个单位至
处,再向右运动
个单位至
处,再向上运动
个单位至
处,
,如此继续运动下去.则
的坐标为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/27/b08f6b22-5e8f-4434-aa83-5c6f4bcfb301.png?resizew=230)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b4ca91f9c34da97ffb91195e8beb6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f669a1d6376f795f05b47eb7d8067c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797e67927616b141ed7c6b83f8b6f4fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fee50575e3ebd56c4f46dd0bbf8e55d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e24e843f778f53af4f3c9e25faa809.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/391d23b5ffaf0444a1d1a1550a0f3527.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/27/b08f6b22-5e8f-4434-aa83-5c6f4bcfb301.png?resizew=230)
A.![]() | B.![]() | C.![]() | D.![]() |
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21-22高一·江苏·开学考试
2 .
网络是第五代移动通信网络,它将推动我国数字经济发展迈上新台阶.据预测,
年到
年中国
直接经济产出和间接经济产出的情况如图所示,根据图提供的信息,下列推断不合理的是( )![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/27/8b7d77d1-4600-4a18-bedf-b5dc873602d0.png?resizew=536)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47248d88a8876e1177cbd3ba43b11bea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/701554763bdbbf2689a8dae07608da38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf9123c858a96fd6a2e5ecf7581e6de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47248d88a8876e1177cbd3ba43b11bea.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/27/8b7d77d1-4600-4a18-bedf-b5dc873602d0.png?resizew=536)
A.![]() ![]() ![]() ![]() |
B.![]() ![]() ![]() ![]() |
C.![]() ![]() ![]() ![]() ![]() |
D.![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
名校
3 . 如果外切的两圆
和
的半径分别为2和4,则半径为6,且与
和
都相切的圆有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0385df6c7f8ee7ab503b6ed35933695b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd73875650e1538c4c61d5e16d3db29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0385df6c7f8ee7ab503b6ed35933695b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd73875650e1538c4c61d5e16d3db29.png)
A.4个 | B.5个 | C.6个 | D.7个 |
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名校
4 . 整数
使得关于
的二元一次方程组
的解为正整数(
均为正整数),且使得关于
的不等式组
无解,则所有满足条件的
的和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad05a2e6ae5a4c70c7ed541967c56322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/557e6a3d472f51f0694aca0ab8eac495.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.9 | B.16 | C.17 | D.30 |
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5 . 如图,点A,B,C在正方形网格中的格点上,每个小正方形的边长为1,则下列关于
边长的说法,错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/21/da54548b-711c-4c21-a283-42b6d2b4c19f.png?resizew=165)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/21/da54548b-711c-4c21-a283-42b6d2b4c19f.png?resizew=165)
A.AC长为有理数 | B.AC边上的中线长为有理数 |
C.AB,BC长均为无理数 | D.BC边上的高线长为无理数 |
您最近一年使用:0次
名校
解题方法
6 . 如图是抛物线
的部分图像,其顶点为
,与
轴交于点
,与
轴的一个交点为
,连接
,
.以下结论:①常数
;②抛物线经过点
;③
;④当
时,
.其中正确的是( ).
![](https://img.xkw.com/dksih/QBM/2022/8/13/3043495724072960/3043861762293760/STEM/129d3f4d7ac84ee5a5c23d06269f44a9.png?resizew=156)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21bb24251c940bd22c1e272e72d9f601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0e705301752424a492f6277ed7774e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cfef623a9534b5708df5f95f1760a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/367e788c32187ae2cc97aaa24da1d40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a3619ccbcf65312754a970647014e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ddc877ee6aa751e01e237b1a1473d9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f335d5ce2be64f54a4be49ca8e559de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://img.xkw.com/dksih/QBM/2022/8/13/3043495724072960/3043861762293760/STEM/129d3f4d7ac84ee5a5c23d06269f44a9.png?resizew=156)
A.①③ | B.②③ | C.②④ | D.①④ |
您最近一年使用:0次
2022-08-14更新
|
187次组卷
|
2卷引用:辽宁省沈阳市同泽高级中学2022-2023学年高一上学期期初数学试题
7 . 如图
,正方形
中,
,
相交于点
,
是
的中点.动点
从点
出发,沿着
的路径以每秒
个单位长度的速度运动到点
,在此过程中线段
的长度
随着运动时间
的函数关系如图
所示,则
的长为( )
![](https://img.xkw.com/dksih/QBM/2022/6/17/3003467511963648/3006418688786432/STEM/06dcda58586b476ea74a4437168370fd.png?resizew=402)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c042ff18466e8165fadf343d142a4b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f368df8b8fde80254d22e417be5e90b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80672dda9430cb42b3136bcb1b67bbad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://img.xkw.com/dksih/QBM/2022/6/17/3003467511963648/3006418688786432/STEM/06dcda58586b476ea74a4437168370fd.png?resizew=402)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022高一·全国·专题练习
8 . 如图,在
中,
为斜边
的中线,过点
作
于点
,延长
至点
,使
,连接
,
,点
在线段
上,连接
,且
,
,
下列结论:
;
四边形
是平行四边形;
;
.
其中正确结论的个数是( )
![](https://img.xkw.com/dksih/QBM/2022/6/17/3003467511963648/3006418688557056/STEM/eeb7952c8f9448fba337e40d77eae234.png?resizew=210)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42798067d911f96e5784cb138319c907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc0613441dac089635db3d6efd4aeb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d62032a673b594a026f7c90ad4da96f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ff575e55857af133edb24c8e61504f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8120f2eeb724c756b5f84a14c6df527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8120f2eeb724c756b5f84a14c6df527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8b62dc033d86ee9e561b8903796701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c8d84b2d6b0aa45ddc18ba5edff96a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d18b19271fa78e1585ed58dccdf97543.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07d976694e71d862d92887825edeef88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dc1b26b67f4f23b11b00bae697ae899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320af9939f5875bf04689e72b4e92630.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f419baa67e9700584593376200bb23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f20a45f0613c3aa8a8e78363d670ce6c.png)
其中正确结论的个数是( )
![](https://img.xkw.com/dksih/QBM/2022/6/17/3003467511963648/3006418688557056/STEM/eeb7952c8f9448fba337e40d77eae234.png?resizew=210)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 如图,
是
的角平分线,
,
分别是
和
的高,得到下列四个结论:
;
;
当
时,四边形
是正方形;
其中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/23/79d11a05-a930-4487-84d7-404a09506585.png?resizew=181)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/442774b9275a7e69ad8e43845a0617a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e9ded7a7207739774429a6a8622143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82e415812cca9545611c0faa0c01b1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48a61d8bedef61745ee4fd89a8c0c119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f406938646313cb78804e1095636c2b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/23/79d11a05-a930-4487-84d7-404a09506585.png?resizew=181)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次