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SAT官方每日一题 2017年4月7日.

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SAT试题类型:Mathematics > Standard Multiple Choice Read the following SAT test question and then click on a button to select your answer. |n + 1| < 4 How many integers n satisfy the inequality above? Answer Choices (A) One (B) Two (C) Four (D) Seven (E) Eight 答案:D 解析: Explanation If absolute value (n + 1) less than 4, and n is an integer, then the possible values of n + 1 are the integers greater than or equal to negative three and less than or equal to 3, so the possible values for n are negative 4, negative 3, negative 2,negative 1, 0, 1, and 2. Therore, there are seven integers n that satisfy the given inequality.

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