以下哪种是人工被动免疫()。
A.注射菌苗
B.口服麻痹糖丸
C.接种BCG
D.注射免疫球蛋白
E.注射类毒素
参考答案:D
胸痹缓急者,治宜()
A.枳实薤白桂枝汤
B.瓜蒌薤白白酒汤
C.薏苡附子散
D.瓜蒌薤白半夏汤
E.橘枳姜汤
_____ is known to all,China will be an _____ and powerful country in 20 or 30 years' time. [ ]
A. That; advancing
B. This; advanced
C. As; advanced
D. It; advancing