10-11高二下·海南·期末
1 . 如图,正方形ABCD中,E是AB上任一点,作EF⊥BD于F,则EF︰BE=( )
![](https://img.xkw.com/dksih/QBM/2011/4/18/1570122042114048/1570122047234048/STEM/c8e7906236ea46d79e6b76ace0826b88.png?resizew=84)
![](https://img.xkw.com/dksih/QBM/2011/4/18/1570122042114048/1570122047234048/STEM/c8e7906236ea46d79e6b76ace0826b88.png?resizew=84)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 在含有
件次品的
件产品中,任取
件,其中恰有
件次品,则
的最大值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10-11高二下·海南·期末
3 . 在⊙O中,弦
,圆周角
,则⊙O的直径等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1be0267a0d8fa9e701b095478eda4909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a4be10d72a71f6c677f6c4eb99febae.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8-9高三·湖南岳阳·阶段练习
4 . 函数y=x2-2x在区间[a,b]上的值域是[-1,3],则点(a,b)的轨迹是图中的( )
![](https://img.xkw.com/dksih/QBM/2010/3/1/1569617024909312/1569617088520192/STEM/b3059292f85a4e028045ddb071a95e20.png?resizew=140)
![](https://img.xkw.com/dksih/QBM/2010/3/1/1569617024909312/1569617088520192/STEM/b3059292f85a4e028045ddb071a95e20.png?resizew=140)
A.线段AB和线段AD | B.线段AB和线段CD |
C.线段AD和线段BC | D.线段AC和线段BD |
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10-11高二下·海南·期末
5 . 如图,E是平行四边形
边BC上一点,
交BD于F,则
( )
![](https://img.xkw.com/dksih/QBM/2011/4/18/1570122042114048/1570122047135744/STEM/d9e1d0cdee264bb2b76e2100f2015475.png?resizew=136)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ed357deafa4cd7c494487a5f3e573d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ce29f74ce7efd65609216a42df81e7.png)
![](https://img.xkw.com/dksih/QBM/2011/4/18/1570122042114048/1570122047135744/STEM/d9e1d0cdee264bb2b76e2100f2015475.png?resizew=136)
A.![]() | B.![]() | C.![]() | D.![]() |
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10-11高二下·海南·期末
6 . 在△
中,
、
分别在
、
上,下列推理不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10-11高二下·海南·期末
7 .
△
中,
是斜边
上的高,该图中只有
个三角形与△
相似,则
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b73071db1b5fa051c88f7093fed12a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
10-11高二下·海南·期末
8 . 下图是二次函数
的部分图象,则函数
的零点所在的区间是( )
![](https://img.xkw.com/dksih/QBM/2011/7/16/1570262382518272/1570262387687424/STEM/1fb6e97351f04cd4b44b193481486262.png?resizew=129)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d63aaa178677e179fd17fb87877ccb38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be24d90fd0b94acc00974e0f9f043c32.png)
![](https://img.xkw.com/dksih/QBM/2011/7/16/1570262382518272/1570262387687424/STEM/1fb6e97351f04cd4b44b193481486262.png?resizew=129)
A.![]() | B.![]() | C.![]() | D.![]() |
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11-12高二下·陕西西安·期中
9 . 设是虚数单位,复数
为纯虚数,则实数为
![](https://img.xkw.com/dksih/QBM/2012/6/16/1570888930607104/1570888935448576/STEM/ec80b94e541047ee95ff9021dd396f9e.png)
A.2 | B.-2 | C.![]() | D.![]() |
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