[解析]
1﹣3 CAB
(1)C.推理判断题.根据第二段倒数第二句"and her typing style was analyzed to make sure she was who she said she was:Did she enter her student number at the same speed as she had in the past?"可从本句得知监控Jennifer的原因是为了确保她不作弊.故选C,就是不诚实的行为.
(2)A.猜测词义题.根据"a key to encourage"以及下一句的"the technology"可以知道答案.cutting edge与key是并列关系,同时二者都可以做到鼓励诚实行为.前面this所指代的为上文中提到的防作弊科学技术,由此得知cutting edge应该为advanced technique.故选A.
(3)B.细节理解题.根据最后一段的第一句"Other programs can produce unique exams by drawing on a large list of questions and can recognize possible cheaters by analyzing whether difficult test questions are answered at the same speed as easy ones."可知正确选项为B.通过生成大量的有难也有易的问题,然后通过比较答题速度来辨别可能的作弊者.故选B.