What is most remarkable about the proposal made by the two scientists? If what is proposed by the two scientists becomes true,

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问题 What is most remarkable about the proposal made by the two scientists?
If what is proposed by the two scientists becomes true, ______.

选项 A、air pollution will become a thing of the past
B、there will be no need for gasoline substitutes
C、people will be able to use much cheaper energy
D、there will be no more bio fuel-powered vehicles

答案B

解析 第三段中说:Gasoline,it turns out,is an almost ideal fuel.If it can be made out of carbon dioxide in the air,the Los Alamos concept may mean there is little reason to switch,after all.”意为:汽油,证明是几乎完美的燃料。如果能用空气中的二氧化碳制造汽油的话,Los Alamos的想法就意味着,根本不用其他替代燃料。故B项为正确答案。其他选项都不符合此题的要求。
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