1.1 ,2.2 ,4.3 ,7.4 ,11.5 ,( )A.155 B.156 C.158 D.166

作者: tihaiku 人气: - 评论: 0
问题 1.1 ,2.2 ,4.3 ,7.4 ,11.5 ,( )
选项 A.155 B.156 C.158 D.166
答案 D
解析 解析:此题初看较乱,又是整数又是小数。遇到此类题时,可将小数与整数分开来看,先看小数部分,依次为 0.1,0.2,0.3,0.4,0.5,那么,( )内的小数应为 0.6,这是个自然数列。再看整数部分,即后一个整数是前一个数的小数与整数之和,2=1+1,4=2+2,7=4+3,11=7+4,那么,( )内的整数应为 11+5=16。故本题的正确答案为 D。

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