门脉高压病人麻醉应避免（）
A.N2O
B.氯胺酮
C.安定
D.芬太尼
E.氟烷
参考答案：E
看图回答问题。
1. What do you do in the morning?
___________________________.
2. What do you do after breakfast?
______________________________.
3. What do you do in the evening?
_______________________________.
4. What do you do after you do your homework?
________________________________.
氧分压最高的是（）
A.静脉血
B.动脉血
C.组织液
D.新鲜空气
