-1,1,-4/3,2,(),16/3 A. 13/4 B. -16/5 C. -13/4 D. 16/5

作者: rantiku 人气: - 评论: 0
问题 -1,1,-4/3,2,(),16/3 A. 13/4 B. -16/5 C. -13/4 D. 16/5
选项
答案 B
解析 解题指导: 原式可化为:-1/1,2/2,-4/3,8/4,-16/5,32/6;可知:奇数项为负数,偶数项为正数;分母由一个连续的自然数组成,分子由以2为公比的等比数列组成;故答案为B。

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