His behavior at the party last night seemed rather_______. Many of us were quite

surprised.

A．out of practice

B．out of place

C．out of order

D．out of pity

阿司匹林的抗栓机制是（）

A.抑制磷脂酶A₂，使TXA₂合成减少

B.抑制环氧酸，使TXA₂合成减少

C.抑制TXA₂合成酶，使TXA₂合成减少

D.抑制酯氧酶，使TXA₂合成减少

E.以上均不是