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已知函数f(x)是(-∞,+∞)上的偶函数,若对于x≥0,都有f(x+2)=-f(x),且当x∈[0,2)时,f(x)=log
2(x+1),则f(-2011)+f(2012)=
.
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已知函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102756334215940/SYS201311031027563342159008_ST/0.png)
若f(a)=
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,则a=
.
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已知函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102756334215940/SYS201311031027563342159007_ST/0.png)
若关于x的函数y=f
2(x)-bf(x)+1有8个不同的零点,则实数b的取值范围是( )
A.(2,+∞)
B.[2,+∞)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102756334215940/SYS201311031027563342159007_ST/1.png)
D.
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△ABC外接圆的圆心为O,两条边上的高的交点为H,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102756334215940/SYS201311031027563342159006_ST/0.png)
,则实数m的值( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102756334215940/SYS201311031027563342159006_ST/1.png)
B.2
C.1
D.
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102756334215940/SYS201311031027563342159005_ST/images0.png)
若函数y=f(x)的图象如图所示,则函数y=f(1-x)的图象大致为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102756334215940/SYS201311031027563342159005_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102756334215940/SYS201311031027563342159005_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102756334215940/SYS201311031027563342159005_ST/images3.png)
D.
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