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下列函数,在区间(0,+∞)上为增函数的是( ) A.y=ln(x+2) B. ...
下列函数,在区间(0,+∞)上为增函数的是( )
A.y=ln(x+2)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100029636870887/SYS201311031000296368708003_ST/0.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100029636870887/SYS201311031000296368708003_ST/1.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100029636870887/SYS201311031000296368708003_ST/2.png)
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