Which of the following is the best title of this passage?
阅读下列应用文及相关信息,并按照要求匹配信息,请在答题卡上将对应题号的乡音选项字母涂黑。
首先请阅读下列杂志上的广告内容:
Some programs can find out possible cheaters by _____.
For internet universities, exams and diplomas will be valid if _____.
What made David change?
根据材料请回答下列各
While Jennifer was at hose taking an online exam for her business law class, a monitor(监控器)a few hundred miles away was watching her every move.
Using a web camera equipped in Jennifer’s Los Angeles apartment , the monitor in Phoenix tracked how frequently her eyes moved form the computer screen and listened for the secret sounds of a possible helper in the room. Her Internet access was locked — remotely — to prevent Internet searches , 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? Or was she slowing down?
In the battle against cheating , this is the cutting edge and a key to encourage honesty in the booming field of online education. The technology gives trust to the entire system, to the institution and to online education in general. Only with solid measures against cheating, experts say, can Internet universities show that their exams and diplomas are valid — that students haven’t just searched the Internet to get the right answers.
The underlined expression cutting edge in Paragraph 3 is closest in meaning to ______.
What can be inferred about David?
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