下列实数是有理数的是( )
A.![]() | B.![]() | C.0.121121112… | D.![]() |
更新时间:2023-03-14 06:08:14
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【推荐1】下列给出的数中,是无理数的是( )
A.3.14 | B.![]() | C.![]() | D.![]() |
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【推荐2】估计
-
的值在哪两个整数之间( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccc5e1cf5932819c7b8891b901b773bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5a1a7a04d4c10e7a45714482bfb58d.png)
A.10和11 | B.8和9 | C.7和8 | D.6和7 |
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【推荐1】在下列各数
,
,
,
,
,
中,无理数的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69ee3c61d2298e75fc4f1643f8ebc2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b1625d21fa2fb85cf8c02d8e99f175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80be1c5a8cb03e63d135223b6a5d0a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9db9373e74ecf5d63ad98afe66aa4ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdefcc8672cae89e5d6b188288ebf99b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94de4f4d291d88b8209e2b054a0c16b7.png)
A.2 | B.3 | C.4 | D.5 |
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【推荐2】在实数
,0,
,
,
,
,2.010010001…中,无理数的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598564aec706dff769c5afc4c378c572.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5be7821872c2f83d39ffaea5216d09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c5e81c259f9f8a7a1bfd8698f7237a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8397629ac2094389cd991491413535c.png)
A.2个 | B.3个 | C.4个 | D.5个 |
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