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实时资讯全掌握
| If the exchange rate has changed from 1 U.S. dollar to 5 foreign currency units (FCUs) to a rate of 1 U.S. dollar to 5.5 FCUs, A. The U.S. dollar has appreciated by 10%. B. The U.S. dollar has depreciated by 10%. C. The FCU has appreciated by 20%. D. The FCU has depreciated by 20%. |