I assume 主持人选了一扇里面 is considered as [the second door], the rest
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Probability measures uncertainty. What already happened is not u
-燕京十景-
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09/30/2014 postreply
10:57:51
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Sure enough what happened may change future probability, but you
-燕京十景-
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09/30/2014 postreply
10:59:56