单项选择题
Loss and damage ration for motor are lower than any other modes. Is it correct?（）
A. Yes B. Depend C. Not D. I don’t know
单项选择题 The international trade needs the （） to fulfill its transaction.
单项选择题 The international transport and the international logistics are same. Is it correct or not? （）
单项选择题 What is the meaning of trend?（）
