题型:填空题 尿干化学试剂带测定尿糖,下列说法中错误的是()A.试剂带法比班氏法特异性高B.维生素C可产生假阴性反应C.试剂带法比班氏法灵敏度高D.测定结果跟尿液与试剂膜块反映的事件无关E.过氧化物可产生假阳性结果 查看答案
题型:填空题 — My English isn't good. — How many years ago ____ English? [ ]A. did you began to studyB. do you begin to study C. have you studiedD. had you studied 查看答案