题型:选择题 I want to buy that kind of cloth because I ______ the cloth _______ well .[ ]A. have told, washes B. was told , washed C. have been told, washes D. was told, washes 查看答案
题型:单项选择题 长江流域某放牧牛群,部分牛只出现食欲下降、行动迟缓、营养不良、贫血等症状,剖检见肝、脾肿胀、腹水、肝脏上有结节,在肠系膜静脉内,见雌雄合抱的线状虫体。该病原的感染途径是:()(769-32)A、经皮肤感染B、经蜱叮咬感染C、经蚊叮咬感染D、经白蛉叮咬感染E、经口感染 查看答案