苏合香丸的功效是（）。
A.清热开窍，豁痰解毒
B.芳香开窍，行气止痛
C.化痰开窍，辟秽解毒
D.清热开窍，镇惊安神
E.清热开窍，化浊解毒
参考答案：B
结构上不含杂环的镇痛药是（）.
A.盐酸吗啡
B.枸橼酸芬太尼
C.二氢埃托菲
D.盐酸美沙酮
E.苯噻啶
If only he ____ quietly as the doctor instructed, he would not suffer so much now. [ ]
A. lies
B. lay
C. had lain
D. should lie
