A:adopted
B:adjusted
C:addicted
D:adapted
选出恰当的应答语。
A.I'm eleven years old.
B.It's a toy boat.
C.I have eight.
D.Yes.I do.
E.I see thirteen.
( 1 )____( 2 )____( 3 )____( 4 )____( 5 )____
如图,在半径为2cm的⊙O中有长为23cm的弦AB,则弦AB所对的圆心角的度数为( )
下列关于氧气性质的叙述中,不正确的是( )