Oh, I'm not feeling well in the stomach. I ________ so much fried chicken just now.

A．shouldn't eat

B．mustn't have eaten

C．mustn't eat

D．shouldn't have eaten

力偶对刚体产生下列哪种运动效应（）

A.既能使刚体转动，又能使刚体移动

B.与力产生的效应，有时可以相同

C.只可能使刚体移动

D.只可能使刚体转动