下列各数:﹣2,
,0,﹣π,
,0.0200200020…(相邻两个2之间0的个数逐次加1),其中无理数的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39f3fae1304b36c0aa24d98d4ae0508b.png)
A.4 | B.3 | C.2 | D.1 |
更新时间:2022-01-22 07:34:13
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【推荐1】下列各式中,不正确的是( )
A.±![]() | B.![]() | C.±![]() | D.![]() |
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【推荐2】在实数
,
,
,
,
(每两个相邻的2中间依次多一个0)中,无理数有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efbc9a84f16a94b0ca5db78cba26b356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598564aec706dff769c5afc4c378c572.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25c8c21931f640d6473191160e2a9bf5.png)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐1】在实数3.14159,
,1.010010001…(相邻两个1之间0的个数逐次加1),
,
,
中,无理数有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f9844c14ff7b2ec28db4ade1a7ffc8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41914217cd8ad1d43cc8d4bde6cf816.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ea8a253d26996b3222936737ff2e594.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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