我倒是觉得这题难度一般

不就是凑嘛
9.5 = 7.5+2

7.5*4 = 30
2*5 = 10

所有跟帖: 

you will need more than 5 mice then. the time period should be c -dynamic- 给 dynamic 发送悄悄话 (0 bytes) () 03/03/2008 postreply 15:52:39

回复:you will need more than 5 mice then -dynamic- 给 dynamic 发送悄悄话 (48 bytes) () 03/03/2008 postreply 15:53:33

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