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Gaokao Math Practice Question

6. 将 5 名北京冬奥会志愿者分配到花样滑冰,短道速滑、冰球和冰显 4 个项目进行培训, 每名 志愿者只分配到 1 个项目, 每个项目至少分配 1 名志愿者, 则不同的分配方案共有()

  1. A.60 种
  2. B.120 种
  3. C.240 种
  4. D.480 种

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