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题目材料：
For the category that had the least total dollar volume of trade with the United States in 1972, the value of exports from the United States exceeded the value of imports to the United States by
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A$4, 123, 000
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B$49, 900, 000
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C$499, 000, 000
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D$1, 676, 000, 000
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E$4, 123, 000, 000
C显示答案
