—Well, I a cigarette in the car on the way home.
A:had had
B:had
C:am having
D:will have
下列词语中划线字读音有误的是( )
如下图OA=OB=OC且∠ACB=30°,则∠AOB的大小是( )
人的长骨具有一定的韧性,这是因为( )