题目内容
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[主观题]
Whydosomescientistsstudyhowplantsconvertsunlightcarbondioxide,andwaterintosugarsandstarche
Why do some scientists study how plants convert sunlight carbon dioxide, and water into sugars and starches？ _______A Because they want algae to produce sugars and starches.B Because they want green plants to become a new source of energy.C Because they want to turn plant sugars to a new form of energy.D Because they want to make photosynthesis more efficient.
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