单选题:Scientists study how photosynthesis works because they want

  • 题目分类:理工类
  • 题目类型:单选题
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题目内容:
Scientists study how photosynthesis works because they want to __________. A.improve the efficiency of it
B.turn plant sugars to a new form of energy
C.make green plants a new source of energy
D.get more sugars and starches from plants

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