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已知函数f(x)=,若a,b,c互不相等,且f(a)=f(b)=f(c),则a+...
已知函数f(x)=
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,若a,b,c互不相等,且f(a)=f(b)=f(c),则a+b+c的取值范围是( )
A.(1,2010)
B.(1,2011)
C.(2,2011)
D.[2,2011]
考点分析:
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,x∈R
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