无菌纱条填塞官腔止血时:
A.36小时取出
B.24小时取出
C.12小时取出
D.8小时取出
E.16小时取出
参考答案:B
Pleasant, polite or harmless sounding words or expressions used to mask harsh, rude or infamous truths are __________________.
道床病害的原因?