——The number of the tigers is getting __________. ——I agree _______ you.
A:more and more , to
B:smaller and smaller, to
C:smaller and smaller, with
D:more and more ,with
下列关于神经系统结构和功能的叙述,不正确的是( )。
两圆的半径分别为3cm和4cm,圆心距为1cm,则两圆的位置关系是( )