2. 外语
  3. Since mixtures are composed of two or more pure substances, each______ changes state at a different temperature.

Since mixtures are composed of two or more pure substances, each______ changes state at a different temperature.

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问题 Since mixtures are composed of two or more pure substances, each______ changes state at a different temperature.
选项 A、company
B、companion
C、compound
D、component
答案D
解析 名词辨析 A)company“陪伴，公司”；B)companion“同伴，朋友”；C)compound“混合物，化合物”； D)component“成分，部件，元件”。
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大学英语四级

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