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Corn-b

  • ased ethanol mightnot
  • be
  • chosen as an alternative because    [A]carbon re
  • duction in both fuel productionand burning might be hard.    [B]California also intends to cut downemissions from new vehicles.    [C]it is almost impossible for vehicle fuelto produce l0%lesscarbon.  &nbs
试题出自试卷《2013年考研《英语》考前押密试卷(十)》
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