△ABC中，∠A的正弦记作 [ ]
A．sinA
B．cosA
C．tanA
D．cotA
答案：A
If you'd written earlier, I'd have known when you _____ to go on holiday.[ ]
A. want
B. have wanted
C. wanted
D. will want
多器官功能障碍中，最常见的首发器官是（）
A.脑
B.肝
C.肺
D.肾
E.心
