Please send us all the information ________ you have about the candidate for the position.
A:that
B:which
C:as
D:what
I got a beautiful gift on birthday.
如图所示,粗糙水平圆盘上,质量相等的A、B两物块叠放在一起,随圆盘一起做匀速圆周运动,设物体间最大静摩擦力与滑动摩擦力相等,则是下列说法正确的是( )