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呼吸衰竭定义指
A.PaO2〈6.65kPa(50mmHg)和PaCO2〉6.65kPa(50mmHg)
B.PaO2〈6.65kPa(50mmHg),或伴有PaCO2〉6.65kPa(50mmHg)
C.PaO2〈8.0kPa(60mmHg)和PaCO2〉6.65kPa(50mmHg)
D.PaO2〈8.0kPa(60mmHg)和PaCO2〉6.65kPa(60mmHg)
E.PaO2〈8.0kPa(60mmHg),或伴有PaCO2〉6.65kPa(50mmHg)
参考答案:B