已知∠AOD=25°,OC⊥OA,OD⊥OB,∠COB= ()A.25° B.115° C.155° D.25°或者155°要具体过程.= =

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已知∠AOD=25°,OC⊥OA,OD⊥OB,∠COB= ()A.25° B.115° C.155° D.25°或者155°要具体过程.= =

已知∠AOD=25°,OC⊥OA,OD⊥OB,∠COB= ()A.25° B.115° C.155° D.25°或者155°要具体过程.= =
已知∠AOD=25°,OC⊥OA,OD⊥OB,∠COB= ()
A.25° B.115° C.155° D.25°或者155°
要具体过程.= =

已知∠AOD=25°,OC⊥OA,OD⊥OB,∠COB= ()A.25° B.115° C.155° D.25°或者155°要具体过程.= =
D,如图所示