题目内容：
When a shipper can not be charged less than the appropriate rate of 4kg，even though his particular consignment may weigh less than this，he has to be charged according to certain type of ratewhich is called（ ）．
参考答案：
答案解析：
单选题：When a shipper can not be charged less than the appropriate
- 题目分类：专业英语
- 题目类型：单选题
- 查看权限：VIP