问题 更新时间2023/4/3 12:59:00 4、 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 参参考考答答案案:: D 出自:文鼎教育 >> 乐山师范学院商务函电写作