作业帮131313/272727+130130/270270+13001300/27002700=
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/13 04:27:17
131313/272727+130130/270270+13001300/27002700=
131313/272727+130130/270270+13001300/27002700=
131313/272727+130130/270270+13001300/27002700=
13/9
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来源：学生作业帮助网 编辑：作业帮 时间：2024/05/13 04:27:17
131313/272727+130130/270270+13001300/27002700=
131313/272727+130130/270270+13001300/27002700=
131313/272727+130130/270270+13001300/27002700=
13/9