2, 9/4, 64/27, ( ), 7776/3125

书海库2019-12-17  6

问题 2, 9/4, 64/27, (    ), 7776/3125

选项 A.169/81   B.256/125   C.625/256    D.1521/676

答案C

解析将第一项2改写为2/1,分母各项依次是[img]/upload/tiku/154/5188033_1.png[/img]分子各项依次是[img]/upload/tiku/154/5188033_1_1.png[/img][img]/upload/tiku/154/5188033_1_2.png[/img]
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