国家基本药物目录包括()。
A、化学药品
B、生物制品
C、中药饮片
D、中草药
参考答案:A, B, C
治疗水火烫伤的要药是()
A.三七
B.大蓟
C.地榆
D.白及
.Just as I was leaving the classroom, it ________ to me that I forgot to turn the lights off.
A.happened
B.occurred
C.hit
D.struck