轻度缺氧时吸氧的流量( )|重度缺氧时吸氧的流量( )|氧气雾化吸入时氧气流量( ) A. 1~2L/min B. 2~4L/min C. 4~6L/min D. 6~8L/min E. 8~10L/min
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