定义在r上的偶函数f(x)满足:对任意x1 x2属于(负无穷,0】(x1≠x2)都有x2-x1/f(x2)-f(x1)>0,则()A f(-5)<f(4)<f(6) B f(4)<f(-5)<f(6)C f(6)<f(-5)<f(4) D f(6)<f(4)<f(
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![定义在r上的偶函数f(x)满足:对任意x1 x2属于(负无穷,0】(x1≠x2)都有x2-x1/f(x2)-f(x1)>0,则()A f(-5)<f(4)<f(6) B f(4)<f(-5)<f(6)C f(6)<f(-5)<f(4) D f(6)<f(4)<f(](/uploads/image/z/5412046-22-6.jpg?t=%E5%AE%9A%E4%B9%89%E5%9C%A8r%E4%B8%8A%E7%9A%84%E5%81%B6%E5%87%BD%E6%95%B0f%28x%29%E6%BB%A1%E8%B6%B3%3A%E5%AF%B9%E4%BB%BB%E6%84%8Fx1+x2%E5%B1%9E%E4%BA%8E%28%E8%B4%9F%E6%97%A0%E7%A9%B7%2C0%E3%80%91%28x1%E2%89%A0x2%29%E9%83%BD%E6%9C%89x2-x1%2Ff%28x2%29-f%EF%BC%88x1%EF%BC%89%EF%BC%9E0%2C%E5%88%99%EF%BC%88%EF%BC%89A+f%EF%BC%88-5%EF%BC%89%EF%BC%9Cf%EF%BC%884%EF%BC%89%EF%BC%9Cf%EF%BC%886%EF%BC%89+B+f%EF%BC%884%EF%BC%89%EF%BC%9Cf%EF%BC%88-5%EF%BC%89%EF%BC%9Cf%EF%BC%886%EF%BC%89C+f%EF%BC%886%EF%BC%89%EF%BC%9Cf%EF%BC%88-5%EF%BC%89%EF%BC%9Cf%EF%BC%884%EF%BC%89+D+f%EF%BC%886%EF%BC%89%EF%BC%9Cf%EF%BC%884%EF%BC%89%EF%BC%9Cf%EF%BC%88)
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