题目

若 |ab |= ab ,则必有( ) A. a > 0, b < 0 B. a < 0, b < 0 C. ab > 0 D. ab ≥0 答案:D【分析】 根据绝对值的定义解答即可. 【详解】 解: ∵|ab |= ab , ∴ab ≥0. 故选: D . 【点睛】 本题考查了绝对值的性质,有理数的乘法,熟记绝对值的性质是解题的关键.We, ______ a discussion with the teacher, came to understand the problem better.A.holding B.held C.being held D.having held
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