血中Hb含量低于多少时,即使重度缺氧,亦难发现发绀A.<50g/LB.<60g/LC.<70g/LD.<80g/LE.<90g/L
血中Hb含量低于多少时,即使重度缺氧,亦难发现发绀
A.<50g/L
B.<60g/L
C.<70g/L
D.<80g/L
E.<90g/L
相关考题:
血中Hb含量低于多少时,即使重度缺氧,也难发现发绀A.B.C.D.E.
血中Hb含量低于多少时,即使重度缺氧,亦难发现发绀
A.<50g/L
B.<60g/L
C.<70g/L
D.<80g/L
E.<90g/L