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庄生晓梦迷蝴蝶,____________。(李商隐《锦瑟》)
1年前
已知⊙O的直径为10,点A,点B,点C在⊙O上,∠CAB的平分线交⊙O于点D. 如图①,若BC为⊙O的直径,AB=6,求AC,BD,CD的长;
1年前
She said she _____ her grandparents the next day.
1年前
Look at the ______, sir. The white shirt is larger than the yellow one.
1年前
用卡诺图求逻辑函数F(A,B,C,D)=∑m(1,4,9,13)+∑d(5,6,7,11,15), 求卡诺图和化简过程
1年前