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【单选题】
为考核口服痢疾弧菌疫苗预防细菌性痢疾的效果,将1000名研究对象随机分成疫苗组和对照组,两组分别500人。以血清抗体的细菌性痢疾发病率的下降为结局变量指标,随访观察2年时间。研究结果表明,疫苗组的痢疾杆菌抗体阳转者450人,对照组的抗体阳转者50人;疫苗组发生细菌性痢疾病人15人,对照组发生细菌性痢疾病人60人。该研究中主要结局变量是A.
细菌性痢疾发病率
B.
抗体阳转率
C.
服
D.
随访率
E.
细菌性痢疾发病率和抗体阳转率
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【简答题】People from high ______ cultures tend to see same- relationships as more intimate than opposite- relationships.
【单选题】These leather handbags are fully illustrated in the catalogue and are()the same high quality as our gloves.
A.
for
B.
of
C.
to
D.
in
【单选题】How did the man know Judy?
A.
They were in the same math class.
B.
They were in the same high school.
C.
He sat in front of Judy in math class.
D.
He met her in a party.
【简答题】If one high tide occurs at 1:00 am. the next high tide at the same point will occur at about ______.
【单选题】The government has taken measures to__________ the high prices of daily goods to keep the market stable.
A.
take down
B.
bring down
C.
hand down
D.
tear down
【单选题】当患者的动脉血氧分压低于多少千帕(KPa)时需给予吸氧
A.
4.6kPa(35 mmHg)
B.
5.6kPa(42mmHg)
C.
6.6kPa(50mmHg)
D.
7.6kPa(57mmHg)
E.
8.6kPa(65mmHg)
【单选题】In most high schools, boys and girls attend the same classes, except in health education,- where they are segregated.
A.
classified
B.
organized
C.
decomposed
D.
separated
【单选题】当患者的动脉血氧分压低于多少千帕(kPa)时需给予吸氧
A.
4.6 kPa(35 mmHg)
B.
5.6 kPa(42 mmHg)
C.
6.6 kPa(50 mmHg)
D.
7.6 kPa(57 mmHg)
E.
8.6 kPa(65 mmHg)
【单选题】当患者的动脉血氧分压低于多少千帕(kPa)时需给予吸氧
A.
4.6kPa (35mrnHg)
B.
5.6kPa (42mmHg)
C.
6.6kPa (50mmHg)
D.
7.6kPa (57mmHg)
E.
8.6kPa (65mmHg)
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