1/2,3/5,7/10,13/17,21/26,( )A.31/47 B.5/7 C.65/97 D.31/37

admin2020-12-24  5

问题 1/2,3/5,7/10,13/17,21/26,( )

选项 A.31/47
B.5/7
C.65/97
D.31/37

答案D

解析分子作差2 4 6 8 10,21+10=31,分母作差3 5 7 9 11,11+26=37,答案31/37
转载请注明原文地址:https://ti.zuoweng.com/ti/IYA0KKKQ
相关试题推荐