镇痛强度与吗啡相近,但成瘾性发生慢,戒断症状相对轻的药物是()。
A.美沙酮
B.哌替啶
C.纳洛酮
D.吲哚美辛
E.喷他佐辛
参考答案:A
--Excuse me,which is the way to the post office?
--Sorry, I don’t know .You can ask the policeman over there.
--________________
A. How lucky! B. It’s a pity. C. Thank you all the same.
使用同一油罐车运送汽、柴油会对油品质量产生哪些影响?