题型:选择题 When I entered the step-classroom (阶梯教室), the lecture __________ and the audience __________ attentively.A.began, listenedB.was begun, was listeningC.had begun, listenedD.had begun, were listening 查看答案
题型:单项选择题 男性,28岁,右肾结核。发现左输尿管中上1/3结石1个月,直径1.5cm。静脉肾盂造影显示右肾无功能,左肾轻度积水。应首先考虑的治疗是A.左输尿管切开取石术B.右肾切除及左输尿管切开取石术C.左肾造瘘术D.抗结核药物准备下行左输尿管切开取石术E.抗结核及药物排石 查看答案