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问题 填空题

引人注目的伊拉克盛产一种被称为“工业的血液”的物质，它是______．

答案

天然气、煤、石油属于化石燃料．石油被称为工业的血液，煤被称为工业的粮食．天然气的主要成分是甲烷．

故答案为：石油．

填空题

15×4=（    ）                                         15×8=15×4×（    ）=（    ）     

15×28=15×4×（    ）=（    ）              15×36=（    ）
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单项选择题

The goods which have entered the territory, approved by the Customs as items for which no formalities are performed in the way of duty payment, and will be reshipped out of the territory after being stored, processed or assembled in the territory are defined, as ______.

A. bonded goods


B. through goods
C. transshipment goods

D. transit goods
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