检查胃内是否有幽门螺杆菌感染的指标是:
A.BAO
B.MAO
C.PAO
D.隐血试验
E.尿素测定
参考答案:E
解析:胃液中尿素减低见于幽门螺杆菌感染。
This is the first thing you are ________ after you get there.
A.suppose to do
B.supposed do
C.supposed to do
D.supposed doing
深层地下水()
A.污染机会少,自净作用差
B.污染机会少,自净作用强
C.污染机会多,自净作用差
D.污染机会多,自净作用强
E.污染机会无,自净作用无