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Almost no high school students are _________ (满意) with the school hours in China.
1年前
I was really anxious about you. You ____ home without a word. [ ]
1年前
He didn't tell me ______ the exhibition was held.
1年前
已知:Rt△ABC的直角顶点C,另一顶点A及斜边AB的中点D都在⊙O上,BC交⊙O于E. (1)如图1,若AC=CE,求∠B的度数; (2)如图2,若AC=6,BC=8,求⊙O的半径.
1年前
1年前