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如图,直线y=-x+4与x轴,y轴分别交于A,B两点,把△AOB绕点A顺时针旋转...
如图,直线y=-
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x+4与x轴,y轴分别交于A,B两点,把△AOB绕点A顺时针旋转90°后得到△AO′B′,则点B′的坐标是( )
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A.(7,3)
B.(4,5)
C.(7,4)
D.(3,4)
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