关于尿素酶试验,叙述错误的是()
A.是一种氨基酸代谢试验
B.分解底物是尿素
C.常用尿素培养基
D.阳性时培养基变酸性
E.是肠道杆菌科细菌鉴定时常用试验
参考答案:D
— Did you return Fred's call?
— I didn't need to, ______ I'll see him tomorrow. [ ]
A. though
B. when
C. unless
D. because
重度不典型增生患者的治疗是().
A.激光治疗
B.2%丙酸睾酮鱼肝油软膏涂抹
C.电灼病区
D.地塞米松软膏涂擦患区
E.局部病灶切除或单纯外阴切除术