A-A+ [6/(1×7)]-[6/(7×13)]-[6/(13×19)]-[6/(19×25)]-… 2022-03-06 12:05:01 问答库 阅读 问题详情 [6/(1×7)]-[6/(7×13)]-[6/(13×19)]-[6/(19×25)]-……-[6/(97×103)]= ()A.433/567B.532/653 C.522/721 D.436/673 参考答案 查看解答