—They keep their hands on the phones wherever they go, even while they _______ meals.
A:have
B:are having
C:were having
D:will have
若直线经过A(0,1),B(3,4)两点,则直线AB的倾斜角为( )
你的朋友把一支掺有毒品的香烟递给你,并说“来一支吧,太过瘾了!”面对这一诱惑,下列做法中正确的是( )