皮肤黏膜出现发绀时，毛细血管血液的还原血红蛋白超过A．100g/LB．80g/LC．60g/LD．50g/LE．40g/L

皮肤黏膜出现发绀时，毛细血管血液的还原血红蛋白已超过

A．100g/L

B．80g/L

C．60g/L

D．50g/L

E．40g/L

A.100g/L

B.50g/L

C.75g/L

D.55g/L

当毛细血管血液的还原血红蛋白超过下列哪项时，皮肤黏膜即可出现发绀

A．100g/L

B．80g/L

C．60g/L

D．50g/L

E．40g/L

当毛细血管血液的还原血红蛋白超过下列哪项数值时，皮肤黏膜即可出现发绀

A．100g／L

B．80g／L

C．60g／L

D．50g／L

E．40g／L

皮肤黏膜出现发绀时，毛细血管血液还原血红蛋白至少超过

A、75g／L

B、50g／L

C、100g／L

D、45g／L

E、30g／L

A.100g/L

B.80g/L

C.60g/L

D.50g/L

E.60g/LD.50g/L

A.50g/L

B.80g/L

C.60g/L

D.100g/L

E.40g/L

A.20g/L

B.30g/L

C.40g/L

D.50g/L

E.60g/L

A.20g/L

B.30g/L

C.40g/L

D.50g/L

E.60g/L

A.100g/L

B.50g/L

C.75g/L

D.55g/L

E.45g/L