硬脊膜外麻醉最严重的并发症是（）
A.血压下降
B.尿潴留
C.头痛
D.局麻药毒性反应
E.全脊髓麻醉
参考答案：E
补全单词。
1.What's the m with you, Tom?
2.I'm so t because it's hot today and I walked for a long time.
3. ---When did it start?
---About five days a_____
4.She has a fever .She s________ lie down and r__________.
5. I'm not f_________ (feel) well, I have a cold.
确定月度调运计划时，要按照（）等情况，得出合理的存销比。
A、月度衔接数
B、商业库存
C、货运时间
D、市场需求
lked for a long time.