单项选择题
A.300~350ml B.400~600ml C.600~700ml D.500~800ml E.800~1000ml
A.呼吸商(RQ)比值相当于0.5 B.呼吸商(RQ)比值相当于0.6 C.呼吸商(RQ)比值相当于0.7 D.呼吸商(RQ)比值相当于0.8 E.呼吸商(RQ)比值相当于0.9
A.100ml B.150ml C.200ml D.250ml E.300ml