使式子
有意义的x的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfd4d2769d957ac4c57c701652150d83.png)
A.x≥0 | B.x>0 | C.x>3 | D.x≥3 |
更新时间:2019-08-14 02:38:38
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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
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适中
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【推荐1】下列算式:①
;②
;③
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.运算结果正确的概率是( )
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您最近一年使用:0次
单选题
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适中
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【推荐2】在式子
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可以取到3和4的是( )
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A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次