题型:选择题 ---Has Tom finished his job yet? ---I have no idea of it; he _____ it this morning.A.has been doing B.had been doing C.did D.was doing 查看答案
题型:单项选择题 A3/A4型题 患者,女性,32岁,尿频、尿急、尿痛,下腹坠胀2日来诊。尿培养见血琼脂平板上长出中等大、湿润、灰白色菌落,菌落计数106CFU/ml,中国蓝平板为中等大、蓝色菌落,氧化酶阴性,吲哚(+)。适用于泌尿系细菌感染的药物敏感试验是()A.头孢西丁B.呋喃妥因C.氨苄西林D.哌拉西林E.氯霉素 查看答案