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已知,如图弧BC与弧AD的度数之差为20°,弦AB与CD交于点E,∠CEB=60...
已知,如图弧BC与弧AD的度数之差为20°,弦AB与CD交于点E,∠CEB=60°,则∠CAB等于( )
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A.50°
B.45°
C.40°
D.35°
考点分析:
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