这里说的是概率。1/5 + 1/2000 ~= 1/5
所有跟帖:
• If this extra cancer case happens to be our loved ones, will the -志在千里- ♀ (413 bytes) () 11/11/2014 postreply 13:11:53
• 严重同意,远离X射线,远离CT。哈哈哈 -happycow222- ♂ (0 bytes) () 11/11/2014 postreply 13:39:31
• If this extra cancer case happens to be our loved ones, will the -志在千里- ♀ (413 bytes) () 11/11/2014 postreply 13:11:53
• 严重同意,远离X射线,远离CT。哈哈哈 -happycow222- ♂ (0 bytes) () 11/11/2014 postreply 13:39:31
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