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  3. The author of the passage is primarily concerned with______. Which of the following does the author suggest as the most appeali

The author of the passage is primarily concerned with______. Which of the following does the author suggest as the most appeali

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问题 The author of the passage is primarily concerned with______.
Which of the following does the author suggest as the most appealing feature of methanol?
选项 A、It is substantially less expensive than ethanol.
B、It could be provided to consumers through the existing motor fuel distribution system.
C、Its use would substantially reduce ozone levels.
D、Its use would make design improvements in individual vehicles feasible.
答案C
解析 推断题。题意为："作者认为，下列哪句话是甲醇最大的优点?"请参考文章第三段末句：然而，甲醇最大的优点是它能减少车辆90%的形成臭氧的尾气。臭氧是最主要的城市污染物，可知选项"它的应用将显著减少臭氧水平"，为正确答案。
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