单项选择题
A.250mgB.400mgC.150mgD.200mg
A.0.4-0.6g/kg.bwB.0.5-0.7g/kg.bwC.0.6-0.8g/kg.bwD.0.8-1.0g/kg.bw
A.精制谷类B.牛奶C.鸡蛋D.肉汤