——Would you like to drink? Tea, coffee or milk?——Oh, kind of drink is OK, thanks.
A:something; some
B:anything; any
C:anything; some
D:something; any
已知数列{an}的前n项和Sn=n2﹣8n,第k项满足4<ak<7,则k=( )
图是我国东、西部面积和人口比较图,从图中可以得出的信息是( )