单项选择题
A.10g/L B.20g/L C.30g/L D.40g/L
A.50g/L B.100g/L C.150g/L D.200g/L
A.恐惧 B.潜在并发症:肺不张 C.潜在并发症:窒息 D.潜在并发症:低血容量休克 E.潜在并发症:肺部感染