单项选择题
A.30:2 B.15:2 C.5:1 D.2:30 E.2:15
A.80次/分,3~4cm B.100次/分,3~4cm C.120次/分,3~4cm D.100次/分,5cm以上 E.60次/分,4~5cm
A.12~16次/分,500~700ml B.10~12次/分,500~700ml C.12~16次/分,600~800ml D.8~10次/分,500~700ml E.12~16次/分,400~500ml
A.减少出血 B.促进胃肠功能恢复 C.减少肺部感染 D.改善睡眠 E.促进伤口愈合
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