如对病猪进行治疗,可选择的药物是() A. 四环素 B. 土霉素 C. 吡喹酮 D. 伊维菌素 E. 左咪唑 参考答案:C
第29题: [单项选择]Questions 23 to 25 are based on the conversation you have just heard. A. Soccer players. B. Soccer teams. C. The sport of soccer. D. The World Cup. 参考答案:C 答案解析:[解析] 23-25 M: (23)Did you watch the soccer game last night It is exciting! W: Soccer g