中央型肺癌最早出现的X线征象是()
A.肺门肿块
B.局限性肺气肘
C.肺不张
D.阻塞性肺炎
E.黏液嵌塞征
参考答案:A
You'd better sing. It doesn't _____ whether you can sing well or not.[ ]
A. work
B. matter
C. problem
D. affect
对被电击的短暂室颤患者的最佳处理措施为()
A.胸外按压
B.静脉推注利多卡因
C.静脉推注胺碘酮
D.立即除颤
E.人工呼吸