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北京冬奥会备受世界瞩目。下列说法错误的是

Gaokao · Chemistry · previous-year question

  1. A.冰壶主材料花岗岩属于无机非金属材料
  2. B.火炬“飞扬”使用的碳纤维属于有机高分子材料
  3. C.冬奥会“同心”金属奖牌属于合金材料
  4. D.短道速滑服使用的超高分子量聚乙烯属于有机高分子材料

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