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已知函数,则不等式x+(x+1)f(x+1)≤1的解集是( ) A. B.{x|...
已知函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231806901374336/SYS201311012318069013743006_ST/0.png)
,则不等式x+(x+1)f(x+1)≤1的解集是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231806901374336/SYS201311012318069013743006_ST/1.png)
B.{x|x≤1}
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231806901374336/SYS201311012318069013743006_ST/2.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231806901374336/SYS201311012318069013743006_ST/3.png)
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231806901374336/SYS201311012318069013743002_ST/4.png)
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n}中,已知a
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