—How would you like your coffee, sir?

—________. It’s my favourite.

A．Black, please

B．Very much

C．It tastes good

D．No, thanks

单一平面滑动破坏的岩坡，滑动体后部可能出现的张裂缝的耀度（岩石重度γ，滑面黏聚力c，内摩擦角φ）为（）。

A.A

B.B

C.C

D.D