王老师:19139051760(拨打)复制微信 题目 更新时间:2023/4/3 For ( )commodities as oil, sand and timber, rail transportation is cheaper than road transportation. A. unpacked B. large quantities of C. unpackaged D. Bulk 答案 登录 注册 D 出自:文鼎教育 >> 乐山师范学院商务信函处理 乐山师范学院继续教育学院