• 日期: 2028-09-18
  • 标签: 常规

The winner can choose any of the 10 prizes as the first choice. After selecting the first prize, there are 9 remaining prizes to choose from for the second choice. Finally, for the third choice, there are 8 remaining prizes to choose from. Therefore, the total number of options is $10 \times 9 \times 8 = \boxed{720}$.


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