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让我看看
what???let me see~~
019: :019:
let me have the answer
单向路程x,来回时间分别为十分之x,十五分之x
2 m! I. }6 M, H# a6 {5 H% J9 p总路程2x除以来回时间的和
2 c% g5 q+ L) i9 F6 d* E: s12
thank you
see see
http://klyriz4u.blogspot.com/
12.5?
cccccc
12.5 ??
睇吓點做
thank you very much
thank you very much
thank you very much
thank you very much
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