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设f(x)是定义在R上的奇函数,且当x≥0时,f(x)=x2,若对任意的x∈[t...
设f(x)是定义在R上的奇函数,且当x≥0时,f(x)=x
2,若对任意的x∈[t,t+2],不等式f(x+t)≥2f(x)恒成立,则实数t的取值范围是( )
A.
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B.[2,+∞)
C.(0,2]
D.
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