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1 . 方程
的解有( )个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf2856f7c72d1641889e6a51cd5dd670.png)
A.0 | B.1 |
C.2 | D.多于2个 |
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2023-06-13更新
|
194次组卷
|
2卷引用:安徽省黄山市屯溪第一中学2022-2023学年高一上学期入学实验班选拔考试模拟试卷(一)
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2 . 若
(x、y是实数),则M的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e032cbfed165fe953d35a2ccf6ab7ec.png)
A.正数 | B.负数 |
C.零 | D.以上皆有可能 |
您最近一年使用:0次
2023-06-13更新
|
251次组卷
|
3卷引用:安徽省黄山市屯溪第一中学2022-2023学年高一上学期入学实验班选拔考试模拟试卷(一)
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3 . 电影票每张50元,如果有
个人排队买票,其中m个人各持有50元面值的人民币一张,另外n个人各持有100元面值的人民币一张,而票房没有预备找零,当
时,将这
个人排成一列顺序购票且无需因为等待找零耽误时间的排队种数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3d883d7c925d974922cd11e2d4f206a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
A.12 | B.14 | C.16 | D.18 |
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4 . 如图,直线
与坐标轴交于
、
两点,点
是线段
上的一个动点,过点
作
轴的平行线交直线
于点
,
绕点
顺时针旋转
,边
扫过区域(阴影部分)面积的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9427de5d22d37859a110dbb234313c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812eed46a589bde8b7c78a81a8cf9b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/9/65ea167a-2137-4a4b-9239-6019043a64ed.png?resizew=175)
A. ![]() | B.![]() | C.![]() | D.![]() |
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5 . 如图,等腰
中,顶角
,用尺规按①到④的步骤操作:
①以O为圆心,
为半径画圆;
②在⊙O上任取一点P(不与点A,B重合),连接
;
③作
的垂直平分线与⊙O交于M,N;
④作AP的垂直平分线与⊙O交于E,F.
结论I:在⊙O上有两个点P,使得
;
结论II:顺次连接M,
,N,F四点必能得到矩形.
对于结论I和II,下列判断正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e60b66545def38ae9187cc1dcfa60d6.png)
①以O为圆心,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
②在⊙O上任取一点P(不与点A,B重合),连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
③作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
④作AP的垂直平分线与⊙O交于E,F.
结论I:在⊙O上有两个点P,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd304db20219cfa1d5a6b13ab93559a.png)
结论II:顺次连接M,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
对于结论I和II,下列判断正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/9/fbed52e7-c27c-465f-aeb9-d4f1ef93539a.png?resizew=151)
A.I和II都对 | B.I和II都不对 | C.I不对II对 | D.I对II不对 |
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6 . 已知抛物线
与直线
有两个交点
,
,抛物线
与直线
的一个交点是
,则m的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ddc0a29bfef85c1441d02ff117a183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a16a46f03535c5af872fa8fa9f21a431.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49a31f8e8dba418bd5d886998ef8d17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a97d52d5567e06d42d72842339602042.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2157b41548f02a86a438e63238719841.png)
A.![]() | B.![]() | C.6或2 | D.![]() ![]() |
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7 . 如图,将一张圆形纸片(圆心为点O)沿直径MN对折后,按图1分成六等份折叠得到图2,将图2沿虚线BA剪开,再将△AOB展开得到如图3的一个六角星,若
,则∠OBA的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40bc83b0ba099574d800d84c2c32d52.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/7/1aea8b5e-9359-488d-9299-26eaa460a040.png?resizew=412)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 甲和乙两个几何体都是由大小相同的小立方块搭成,它们的俯视图如图,小正方形中数字表示该位置上的小立方块个数,下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/7/007fc7c4-9295-48c1-abdf-dfc9e456c2a1.png?resizew=186)
A.甲和乙左视图相同,主视图相同 | B.甲和乙左视图相同,主视图不相同 |
C.甲和乙左视图不相同,主视图相同 | D.甲和乙左视图不相同,主视图不相同 |
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9 . 已知
,则方程
的解集为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b54fdc920fd0a627959bbc5bd292d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828765097c682c0b260c81e5bf6229a6.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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10 . 如图,O是正方形ABCD对角线AC上一点,OE⊥OD,∠OED=45°,E在AB上,结论:①∠
;②
;③
;④若
,则
,其中正确结论的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e364d1b450b0260737b46afe0220cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a9987c504b41d057d335b9950e3e9ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4386acc94970da503bf1cd6bcf1da09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b2f20d1c4e14fb8f1a359c804d3b534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25af8eda40e561c973ef67cd57b09c80.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/1/006030be-fd85-40c0-849f-1a9a962e2ee9.png?resizew=132)
A.1 | B.2 | C.3 | D.4 |
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