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【简答题】

While Jennifer was at home 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 from the computer screen and listened for the secret sounds of a possible helper in the room. Her Internet access was locked - remotely - to pr Internet searches , and her typing style was yzed 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. Although online classes have existed for more than a decade, the concern over cheating has become sharper in the last year with the growth of 'open online courses.' Private colleges, public universities and corporations are jumping into the online education field, spending millions of dollars to attract potential students, while also taking steps to help guarantee honesty at a distance. Aside from the web cameras, a number of other high-tech methods are becoming increasingly popular. Among them are programs that check students’ identities using personal information, such as the telephone number they once used. Other programs can produce unique exam by drawing on a large list of questions and can recognize possible cheaters by yzing whether difficult test question are answered at the same speed as easy ones. As in many university classes, term papers are scanned against some large Internet data banks for cheating. 小题1:Why was Jennifer watched in an online exam? A.To correct her typing mistakes. B.To find her secrets in the room. C.To pr her from slowing down. D.To keep her from dishonest behaviors. 小题2:The underlined expression cutting edge in Paragraph 3 is closest in meaning to______. A.advanced technique B.sharpening tool C.effective rule D.dividing line 小题3: For Internet universities, exams and diplomas will be valid if _____. A.they can attract potential students B.they can defeat academic cheating C.they offer students online help D.they offer many online courses 小题4:Some programs can find out possible cheaters by _____. A.checking the question answering speed B.producing a large number of question C.scanning the Internet test question D.giving difficult test question 小题5: Which of the following is the best title of this passage? A.The Advantages of Online Exams B.The High-tech Methods in Online Courses C.The Fight against Cheating in Online Education D.The War against the Booming of Online Education

题目标签:监控器
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参考答案:
举一反三

【单选题】直流系统监控器黑屏处理方法错误的是(____)。

A.
更换熔断器
B.
更换电源模块
C.
重新紧固
D.
更换监控器

【多选题】监控器的作用是( )。

A.
监测交、直流配电及整流模块的工作状态
B.
管理电池
C.
故障告警
D.
故障诊断

【单选题】下列不属于防火门监控器功能的是()

A.
显示
B.
呼叫
C.
故障报警
D.
信息记录、查询与上传

【多选题】下列属于防火门监控器不报警的故障原因是()

A.
电源发生故障
B.
线路发生故障
C.
控制板损坏
D.
声响部件损坏
E.
防火门监控器损坏

【多选题】直流监控器功能包括?

A.
具有自动恢复功能
B.
设有电池充电限流和充电屏输出总限流
C.
具有充电器超温保护
D.
具有定期恒流补充充电功能

【单选题】防火门监控器故障声信号应________。

A.
不间断
B.
每分钟至少提示1次,每次持续时间为1~3s
C.
声压级(正前方1m处)为45~65dB
D.
发声时光信号不同步
相关题目:
【单选题】直流系统监控器黑屏处理方法错误的是(____)。
A.
更换熔断器
B.
更换电源模块
C.
重新紧固
D.
更换监控器
【多选题】监控器的作用是( )。
A.
监测交、直流配电及整流模块的工作状态
B.
管理电池
C.
故障告警
D.
故障诊断
【单选题】下列不属于防火门监控器功能的是()
A.
显示
B.
呼叫
C.
故障报警
D.
信息记录、查询与上传
【多选题】下列属于防火门监控器不报警的故障原因是()
A.
电源发生故障
B.
线路发生故障
C.
控制板损坏
D.
声响部件损坏
E.
防火门监控器损坏
【多选题】直流监控器功能包括?
A.
具有自动恢复功能
B.
设有电池充电限流和充电屏输出总限流
C.
具有充电器超温保护
D.
具有定期恒流补充充电功能
【单选题】防火门监控器故障声信号应________。
A.
不间断
B.
每分钟至少提示1次,每次持续时间为1~3s
C.
声压级(正前方1m处)为45~65dB
D.
发声时光信号不同步
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