What is the pathogenic cause of COPD?
A. smoking
B. air pollution
C. genetic factors
D. bacteria infection
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What are the signs of COPD?
A. COPD often follows a non-stop cough.
B. At the same time, the mucus often swells.
C. People who have got COPD usually feel difficult to breathe.
关闭切口前应注意
A. 检查手术野，待核对器械、敷料数无误后，才能关闭切口
B. 切口内常规用70%酒精消毒
C. 必须待病人清醒后再关闭切口
D. 有些异物能被吸收，故不必太在意
E. 请麻醉师注射一次麻药后再关闭切口
打结是重要的手术基本功，要求组织内结扎线头所留长度一般为
A. 0.5mm左右
B. 1mm左右
C. 3mm左右
D. 5mm左右
E. 10mm左右
间断缝合常用于
A. 皮肤缝合
B. 胸膜缝合
C. 腹膜缝合
D. 膀胱造痿术
E. 结肠造痿术
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