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(2006•曲靖)如图,CD是Rt△ABC斜边AB上的高,将△BCD沿CD折叠,...
(2006•曲靖)如图,CD是Rt△ABC斜边AB上的高,将△BCD沿CD折叠,B点恰好落在AB的中点E处,则∠A等于( )
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A.25°
B.30°
C.45°
D.60°
考点分析:
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