I am not sure I'll have a career a writer.
A:with
B:as
C:like
D:of
已知:如图,在△ABC中,点D为BC上一点,CA=CD,CF平分∠ACB,交AD于点F,点E为AB的中点.若EF=2,则BD=____
目前我国每年新增人口数量依然较大,其根本原因是( )