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單項(xiàng)選擇題

A. Raw materials
B. Heavy, bulky and low value commodities
C. Semi-processed
D. Great amount goods

你可能感興趣的試題

A. 2
B. 3
C. 4
D. Not available in the paragraph

A. 100 tons
B. Not clear
C. more than 100 tons
D. I don’t know

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