新鲜冰冻血浆较普通冰冻血浆多含有的凝血因子是()
A．因子Ⅴ
B．因子Ⅵ
C．因子Ⅶ
D．因子Ⅷ
E．因子Ⅸ
参考答案：A, D
— Does he go to school by car?
— No, ______________. [ ]
A. he does
B. he isn't
C. he doesn't
COPD患者，发热、咳嗽、呼吸困难，医生诊断其Ⅱ型呼吸衰竭，下列的血气结果哪一个符合
A．PaO2＜50mmHg，PaCO2＞45mmHg
B．PaO2＜50mmHg，PaCO2＞60mmHg
C．PaO2＜60mmHg，PaCO2＞50mmHg
D．PaO2＜40mmHg，PaCO2＞40mmHg
E．PaO2＜70mmHg，PaCO2＞55mmHg
