王老师:19139051760(拨打)复制微信 题目 更新时间:2023/4/3 6.(4分)They had to examine the dead tiger before they had a _______ answer as to who killed it. A. positive B. senior C. virtual D. vital 答案 登录 注册 答案A 出自:其他 >> 兰州大学大学英语4 兰州大学继续教育学院