[单选题]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/LB.80g/LC.60g/LD.50g/LE.40g/L
[单选题,A型题] 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/LB . 75g/LC . 50g/LD . 50g/LE . 45g/L
[单选题]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/LB.80g/LC.60g/LD.50g/LE.40g/L
[单选题]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/LB.80g/LC.60g/LD.50g/LE.40g/L
[单选题,A2型题,A1/A2型题] 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/LB . 80g/LC . 60g/LD . 50g/LE . 40g/L
[单选题,A2型题,A1/A2型题] 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/LB . 80g/LC . 60g/LD . 50g/LE . 40g/L
[单选题]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/LB.80g/LC.60g/LD.50g/LE.40g/L
[单选题]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/LB.80g/LC.60g/LD.50g/LE.40g/L
[单选题]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/LB.80g/LC.60g/LD.50g/L
[单选题,A2型题,A1/A2型题] 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/LB . 50g/LC . 100g/LD . 45g/LE . 30g/L