Oops. the rate of breathing is 12-16/minute for human being.

has a long way to go. maybe a good idea.

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12-16 what? 次/小时 还是 升/小时 -Clovelly- 给 Clovelly 发送悄悄话 (1 bytes) () 08/16/2014 postreply 01:08:46

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