【简答题】F ind out the topic sentence(主题句) of paragraph 2.A. Spring is from March to May. B. Summer comes after spring. C. Autumn is a busy season. D. It's very cold in winter.
【单选题】The term “ ( ) ” means the activities of determining the commodity codes of import and export goods , on the basis of the Customs Import and Export Tariff of the People's Republic of China .