2. 外语
  3. By using the national road system, one can drive to all states of America without stopping. It is believed that trucks using th

By using the national road system, one can drive to all states of America without stopping. It is believed that trucks using th

admin2009-04-23  61
问题 By using the national road system, one can drive to all states of America without stopping.
It is believed that trucks using the Interstate Highway System deliver more than ______ of all goods.
选项
答案75 percent
解析 本题涉及到Interstate Highway System中卡车运载的货物量，需锁定文章第二十一段。该段中的Experts believe that trucks using the system carry over seventy-five percent of all products that are sold即为出题点，很显然本题答案为75 percent。题干中的It is believed对应文中的Experts believe；more than对应文中的over；goods对应文中的products that are sold。
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大学英语四级

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