某一孕妇在怀孕初期因车祸进行了输血,不久发现婴儿HIV阳性,婴儿感染的最可能传播方式是
A.医源性垂直传播
B.垂直传播
C.经血液传播
D.接触传播
E.虫媒传播
参考答案:B
The roads into London were so _____ traffic that even the fire engines couldn’t get through.
A.choked up by
B.choked up with
C.choked back by
D.choked back with
国际法上的国家,具有区别于其他非国家实体的四个条件:()、()、()和主权。