5 mins of driving distance

回答: 来,做数学题lilipp2012-04-13 19:05:45

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how long had she been walking? -lilipp- 给 lilipp 发送悄悄话 lilipp 的博客首页 (26 bytes) () 04/13/2012 postreply 19:31:40

60-10/2=55 -FHZM- 给 FHZM 发送悄悄话 FHZM 的博客首页 (0 bytes) () 04/13/2012 postreply 20:35:03

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