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设0<a<1,则函数的定义域为( ) A. B. C.(-1,1) D.
设0<a<1,则函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231520468366230/SYS201311012315204683662002_ST/0.png)
的定义域为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231520468366230/SYS201311012315204683662002_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231520468366230/SYS201311012315204683662002_ST/2.png)
C.(-1,1)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231520468366230/SYS201311012315204683662002_ST/3.png)
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