尿液NAG增高见于（）
A.缺血性肾小管坏死
B.间质性肾炎
C.肾移植排异反应
D.中毒性肾小管坏死
E.肾病综合征
参考答案：A, B, C, D, E
In the International Code of signals，a group of three letters indicates（）.
A.urgency or an emergency
B.the vessel's national identity signal
C.a group from the general signal code
D.a group from the medical signal code
