让慢性阻塞性肺疾病患者进行缩唇呼气的意义是()。
A.有利于痰液排出
B.降低呼吸阻力
C.增加肺泡通气量
D.增加呼气末气道内压力
E.提高呼吸效率
参考答案:D
并联试验可以提高诊断方法的()
A.特异度
B.灵敏度
C.约登指数
D.一致性
E.诊断准确性
Since arriving in New York, Thomas has had over 15 job interviews. And this is opportunity to be lost.
A.too good
B.too a good
C.too good an
D.a too good