如图 所示,直线 AB 和 CD 相交于点 O , OE 、 OF 是过点 O 的射线,其中构成对顶角的是( )
A.
∠AOF 和 ∠DOE
B.
∠EOF 和 ∠BOE
C.
∠BOC 和 ∠AOD
D.
∠COF 和 ∠BOD
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