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Corn-based ethanol mightnot be chosen as an al

2022-08-06 18:17:38 问答库 阅读 180 次

问题详情

Corn-based ethanol mightnot be chosen as an alternative because [A]carbon reduction 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. [D]California’S corns are chieflytransported by cars and trucks.

参考答案

正确答案:A
原因细节题。定位在第三段尾句。第三段尾句说:施瓦辛格下令到2020年交通燃料必须减少10%的碳释放量:在生产燃料和燃烧燃料两个方面都达到这个标准,因此,简单地转向以玉米为主料的酒精燃料就不太可能了。由此可见,原因在于“在燃料生产和燃烧两方面减少碳排放可能很困难”。

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