单选题164,100,68,( ),44。A50B55C52D49
单选题
164,100,68,( ),44。
A
50
B
55
C
52
D
49
参考解析
解析:
164-64=100,100-64×0.5=68,相邻项之差构成首项为64,公比为0.5的等比数列,即所填数字为68-64×0.52=52。
164-64=100,100-64×0.5=68,相邻项之差构成首项为64,公比为0.5的等比数列,即所填数字为68-64×0.52=52。
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