A、printing and looking carefully at the hundreds of papers on the internet B、searching many web pages and comparing words used C

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问题  
There student thieves look out. Students can easily get many research papers off the Internet. A new Website could help teachers catch copiers.
    Some students research and write their term papers. Others, however, just copy them off the Internet and turn them in as their work.
    Two graduate students at the University of California at Berkeley have written a program to catch the students who copy. It compares a student’s paper with every other term paper on the Web.
    A hundred million Web pages on the Internet are searched. The top 20 search engines are used for the search. This service can be found at www. Plagiarism.com. They also have a local database of term papers. Teachers who sign up can send their students’ ’papers to the Website. Within 24 hours they know if the student did the work. Every sentence that was a word-for-word match with another sentence either found on the Internet or within our database is coded.
    A U. C. Berkeley professor told his class he would use the program. Still some students copied papers. All 300 papers went through the program. In 45 papers or 15 percent of students had cut and pasted large amounts of material from different World Wide Websites.
    Students that say they didn’t copy can defend themselves. They can show the instructor where they got their material. Students at universities try hard to get good grades. Some students welcome the Internet research watchdog because they say it is fair to all. They think copying is wrong.

选项 A、printing and looking carefully at the hundreds of papers on the internet
B、searching many web pages and comparing words used
C、asking the students where they got the information in the paper
D、comparing all the papers which are turned in by the students

答案B

解析 特定信息的找寻和判断。根据题干中专有名词定位到原文相关处信息A hundred million Web pages on the Internet are searched.The top 20 search engines are used for the search可知该项目使用最好的20多个搜索引擎搜索上亿个网站,而且Every sentence that was aword-for-word match with another sentence either found on the Internet or within our database is coded即对每个句子中的每个词都进行比照,将比照一致的地方编注。由此可见,B项内容与原文意思相符,是正确的。
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