肺门截断征
参考答案:
肺动脉高压时,肺动脉外围分支纤细、稀疏,肺血亦减少,与扩张的肺门动脉不相称,有骤然粗细不同的鲜明改变,常称为肺门截断征,或称残根征。
—Can you tell me ________ the refrigerator?
—Last month. [ ]
A. when did he buy
B. where he bought
C. where did he buy
D. when he bought
患儿男,生后2天,出生体重为2400g。因吸入性肺炎入院,入院时患儿呼吸急促,口唇稍发绀。即置于辐射保暖床上抢救。
该患儿吸氧的流量应选择每分钟为()
A.1L
B.2L
C.3L
D.4L
E.5L