妊娠期给予大剂量时可造成胎儿心脏瓣膜综合征的维生素是（）
A.维生素A
B.维生素B1
C.维生素C
D.维生素D
E.维生素K
参考答案：D
We have too many people in our country. Their life will be ___________ if there are ___________ children in a family.
A．richer; fewer
B．poorer; fewer
C．richer; more
D．richer; less
目前云南白药的剂型不包括以下哪种？（）
A、胶囊剂
B、气雾剂
C、酊剂
D、凝胶剂
