单项选择题
A. one month B. two months C. three months D. six months
A. against, unless B. for, in C. against, in D. against, under
A. the value of imports or exports declared by the consignors or consignees B. the true transaction value of imports & exports C. the value higher than the transaction value of identical or similar goods D. the value lower than the transaction value of identical or similar goods