問題詳情
19.下列敘述何者正確？
(A)若a＞b，則｜a｜＞｜b｜
(B)若ac＞bc，則a＞b
(C)若｜a｜＜｜b｜，則a2＜b2
(D)若a＞b，則－a＞－b
(A)若a＞b，則｜a｜＞｜b｜
(B)若ac＞bc，則a＞b
(C)若｜a｜＜｜b｜，則a2＜b2
(D)若a＞b，則－a＞－b
參考答案
答案：C
難度：計算中-1
書單：沒有書單，新增
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