单项选择题
A.2ml B.4ml C.52ml D.10ml
A.1ml B.2ml C.3ml D.5ml
A.高流量面罩吸氧 B.球囊面罩吸氧 C.肌注呼吸兴奋剂 D.气管切开
A.0.01%肾上腺素0.5ml B.0.01%肾上腺素1ml C.0.1%肾上腺素0.5ml D.0.1%肾上腺素1ml
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