如果让他心算的话,可能10秒都不要。
题目要求是get the answer,包括从网上找到答案。
所有跟帖:
• You got me! -dr_yin- ♂ (0 bytes) () 10/20/2015 postreply 16:17:48
• You got me! -dr_yin- ♂ (0 bytes) () 10/20/2015 postreply 16:17:48
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