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

来源: 老忽叔叔 于 2012-12-07 12:21:27 [] [旧帖] [给我悄悄话] 阅读数 : 0 (74 bytes)

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

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• 请注意,是星期六, 而不是星期五！ -Chris20119- ♂ 给 Chris20119 发送悄悄话 (0 bytes) () 12/07/2012 postreply 13:40:31

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