治疗梅毒,湿热疮毒,应选用的药物是()。治疗阳痿,疥癣湿疹,应选用的药物是()。
A.硫黄
B.白鲜皮
C.秦皮
D.土茯苓
E.乌梅
参考答案:D,A
The old man needs at most five hour’s sleep a night ,but he__________ for over seven hours tonight.
A. has fallen asleep B has slept C has gone to bed D. has gone to sleep
质量管理的内容包括()方面。
A.3
B.4
C.5
D.6