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There has been ____rising demand for grain as ____industrial material in spite of the nation’s good harvests.


  1. A.
    /;an
  2. B.
    a;an
  3. C.
    the;an
  4. D.
    a;/
B
:demand作为要求和请求时为可数名词;作为需要需求时为不可数名词,在惯用法中既可以说much demand,也可用 great/rising等形容词修饰。一些不可数名词前有形容词修饰时,前面用不定冠词。material与此类似。【标签】冠词用法
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