Question

什么是B.C?

Answer 1

公元前：键稿裤B.C. /`bi:`si:/

是英文before Christ/kraist/的敬激缩写,用在年份后,表示"公元前……年"。

例如：公元前59年写作稿简:59 B.C.读作:fifty-nine B.C.

Answer 2

公元前

Answer 3

. ，Starting around 7000 B.C., and for the next four thousand years, much of the Northern Hemisphere experienced temperatures warmer than at present.

。