Any year in which Dec 1st falls to a Friday, roughly every 7 yea

Any year in which Dec 1st falls to a Friday, roughly every 7 years.

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請注意,是星期六, 而不是星期五! -Chris20119- 給 Chris20119 發送悄悄話 (0 bytes) () 12/07/2012 postreply 13:40:31

請您先登陸,再發跟帖!