2. 考研
  3. Before ______of synthetic dye, yarns were often colored by dyes obtained from natural vegetable and mineral matter.

Before ______of synthetic dye, yarns were often colored by dyes obtained from natural vegetable and mineral matter.

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问题 Before ______of synthetic dye, yarns were often colored by dyes obtained from natural vegetable and mineral matter.
选项 A、introducing
B、introduction
C、the introduction
D、introducing that
答案C
解析 本题考查抽象名词与冠词的用法。根据空后的of判断，空格处应填名词，排除[A]项和[D]项。抽象名词前一般不加冠词，但是，当一个抽象名词不是用于一般概念，而是表示特定的内容，特别是当它有一限制性定语修饰时，常常需要加定冠词，故答案为[C]项。
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