题目内容
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A.120° B.60° C.240° D.180°
一条弧所含的圆周角为120°,那么它所对的圆心角是
A.60° B.120° C.180° D.240°
一条弧所含的圆周角为120°，它所对的圆心角是_____度，它所对的圆周角是_______度.
A.105° B.150° C.210° D.300°
