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【单选题】
Mary was quite sure that she ______ the door before she left home.A.
will lock
B.
has locked
C.
would lock
D.
had locked
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【单选题】听力原文：M: Hello Peggy. Why are you going through all those newspapers? W: Hello David. I'm trying to find a flat and I've gone through all these advertisements, but I can't fred anything good. M: Do you...
A.
She is trying to find a flight number in the advertisements in the newspapers.
B.
She is trying to find a flat in the advertisements in the newspapers.
C.
She is trying to find a film in the advertisements in the newspapers.
D.
She is trying to find a funny article in the newspapers.
【单选题】男性病人,37岁。右胸被刀刺伤后5分钟,病人有明显呼吸困难,右胸伤口处呼吸可有气体进出。57.该病人发生呼吸循环功能紊乱的主要病理机制为
A.
肺受压萎陷
B.
出血
C.
感染
D.
纵隔扑动
E.
疼痛
【单选题】某医生观察某新药对预防流感的效果如下 下列说法最合适的是
A.
服药组的发病率低于未服药组发病率，可以认为该药有效
B.
由于两组发病率相差不大，不能认为该药预防流感有效
C.
由于未设对照组，不能认为该药预防流感有效
D.
本资料应作假设检验后再作结论
E.
因为有抽样误差存在，不能作出结论
【单选题】男性病人, 37 岁。右胸被刀刺伤后 5 分钟,病人有明显呼吸困难,右胸伤口处随呼吸可有气体进出。 该病人发生呼吸循环功能紊乱的主要病理机制为
A.
肺受压萎陷
B.
出血
C.
纵隔扑动
D.
感染
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