王老师:19139051760(拨打)复制微信 题目 更新时间:2023/8/20 I worked there for several days, gradually _____ the truths of the trade by trail and error.( )· inquiring· acquiring· inquired· acquired 答案 登录 注册 单选题· acquiring 出自:青书学堂 >> 华北水利水电大学英语 华北水利水电大学继续教育学院