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使代数式有意义的x的取值范围是( ) A.x≥0 B. C.x≥0且 D.一切实...
使代数式
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有意义的x的取值范围是( )
A.x≥0
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101193659991028396/SYS201311011936599910283006_ST/1.png)
C.x≥0且
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101193659991028396/SYS201311011936599910283006_ST/2.png)
D.一切实数
考点分析:
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