下列各式是二次根式的是( )
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2022-07-14 13:21:47
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【知识点】 二次根式有意义的条件解读
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单选题
|
容易
(0.94)
【推荐1】在式子
,
,
,
(
),
(
)中,一定是二次根式的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39c8095c6bb14e0a5b9bf0b8a54c9b82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40c0f57ea6e7089fb7b417818f664b96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/777ce86a3d065d4a9691a3ad1ca279af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/527093b2ec760913d0dccff8a099248b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b69713e2f3058e36309fe595afe1753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
A.2个 | B.3个 | C.4个 | D.5个 |
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单选题
|
容易
(0.94)
名校
【推荐2】使二次根式
有意义的
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdcda7c7a37d33fad6750632bc247bf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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