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4)“a≤0“是函数f(x)=|(ax-1)x|在区间(0,+∞)内单调递增”的(A)充分不必要条件(B)必要不充分条件(C)充分必要条件(D)既不充分也不必要条件
問題詳情
4)“a≤0“是函数f(x)=|(ax-1)x|在区间(0,+∞)内单调递增”的
(A)充分不必要条件
(B)必要不充分条件
(C)充分必要条件
(D)既不充分也不必要条件
參考答案
答案:C
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
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