單項(xiàng)選擇題DIC氧療時(shí),吸入氧濃度、氧流量各為()

A.≤50%,2~4L/min
B.>50%,2~4L/min
C.<25%,3~8L/min
D.>50%,3~8L/min
E.<50%,3~8L/min


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