将直线y=2x向上平移两个单位,所得的直线是
如图,直线AB、CD相交于点O,OE平分∠BOD,若∠COE=160°,则∠AOC等于( )A.20° B.40° C.60° D.80°
如图,直线AB和CD相交于点O,若∠AOD=55°,则∠AOC=( )
如图,已知直线AB、CD相交于点O,OE平分∠COB,若∠BOD=70°,则∠COE的度数是( )A.45° B.70° C.55° D.110°
如图,直线AB、CD交于点O,射线OM平分∠AOC,若∠BOD=76°,则∠BOM等于( )A.38° B.104° C.142° D.144°
如图,直线AB,CD相交于O点,若∠1=30°,则∠2,∠3的度数分别为( )