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  3. The average college student in America spent an estimated $ 700 on textbooks last year. The National Association of College Stor

The average college student in America spent an estimated $ 700 on textbooks last year. The National Association of College Stor

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问题     The average college student in America spent an estimated $ 700 on textbooks last year. The National Association of College Stores【B1】______more than 5 billion dollars in sales of textbooks and course materials. Association spokesman Charles Schmidt says【B2】______textbooks now, according to a recent report,【B3】______just 2% to 3% of sales. But he says that is【B4】______to reach 10% to 15% by next year. Online versions are now【B5】______many of the most popular college textbooks. E-textbooks can cost half the price of a new print textbook. But students usually lose【B6】______after the end of the term. And the books cannot be placed on more than one【B7】______, so they are not easy to share. So what do students think of e-textbooks? Administrators at Northwest Missouri State University made an investigation. The students in the survey reported that【B8】______the books from the Internet was easy. They liked the idea of carrying lighter backpacks. And 56% said they were better able to find information. But most found that using e-textbooks did not change their study habits. And 60% felt they read more when they were reading on paper. In all, almost half the students said they still liked physical textbooks better. But the survey found that cost could be a big【B9】______55% said they would choose e-textbooks if using them meant their textbook rental fee would not increase. Roger Von Holzen heads the Center for Information Technology in Education at Northwest Missouri State. He tells us that administrators are【B10】______the e-textbooks now available because the majority are not interactive. He thinks growth will come when more digital books include video, activities, games and other ways to interact with the information.
【B9】
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答案influence
解析 语义推断题。南空格前的a big可知此处需要填一个名词。联系上下文可推断，本句表达的意思是调查发现价格是一个很大的影响因素。结合录音可知答案为influence。
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