上述吸氧流量的氧浓度为A.25%~29%B.29%~37%C.37%~45%D.45%~53%E.53%~61%
上述吸氧流量的氧浓度为
A.25%~29%
B.29%~37%
C.37%~45%
D.45%~53%
E.53%~61%
相关考题:
【单选题】吸氧时,氧流量为3L/m'n,吸氧浓度是多少A.25%B.29%C.33%D.37%E.41%
上述吸氧流量的氧浓度为
A.25%~29%
B.29%~37%
C.37%~45%
D.45%~53%
E.53%~61%