I guess you are an epidemiologist...hmmmm



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送交者: mangolasi 于 2005-9-14, 16:48:20:

回答: I think dark age ended with black plague 由 xj 于 2005-9-14, 16:19:33:

Quote from wiki:

"The phrase the Dark Ages (or Dark Age) is most commonly known in relation to the European Early Middle Ages, but it is also used to denote other periods from which events are relatively obscure because of our lack of knowledge of them, usually through lack of written record."



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