题目下列哪种氨基酸缺乏可引起氮的负平衡A. GluB. AspC. ThrD. AlaE. Arg下列哪种氨基酸缺乏可引起氮的负平衡A. GluB. AspC. ThrD. AlaE. Arg题目解答答案A. Glu