日常生活中，人们都知道液体很难被压缩。这是因为[ ]
A.分子间存在着引力
B.分子间是有间隙的
C.分子在不停地运动
D.分子间存在着斥力
答案：D
(2013·山东省十二校高三二模)—Do you think I should accept the invitation to his birthday party?
—________ If I were in your shoes, I certainly would.
A．None of your business.
B．Why not?
C．It depends.
D．I don't think so.
下列选项中不属于医疗事故构成要件的是（）
A.主体必须是医疗机构及其医务人员
B.行为违法性
C.医务人员在工作中严重不负责任
D.过失造成患者人身损害
E.过失行为和后果之间存在因果关系
