问题 更新时间2023/4/3 12:59:00 The trainer usually gives the animal a piece of candy or fruit ( ).(本题3.0分)A、 before it plays a trick B、 when it is hungry C、 after it has done the trick D、 when it starts to play a trick 答案 登录 注册 标准答案:D 出自:青书学堂 >> 延安大学-大学英语4