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Online Degrees Today, you can earn a degree from a major university without ever having sat in one of their classrooms. Many colleges and universities are offering online courses and degree programs now. Online Learning Programs With a computer and an Internet connection, you can earn a degree from home, work, or anywhere else for that matter. Online degree programs follow much the same routines as traditional learning, with a few twists. There are lectures, but they won't be in person. There are assignments (作业) , but you won't hand them to your instructor. In most situations, you are free to 'go to class' when it fits your'schedule. If you get a phone call during class, you don't have to miss anything. If you get sick, you don't have to ask for someone's notes, and you just visit the lecture later. You'll communicate with your instructor by e-mail, chat room and instant messaging. Your  classroom will live in a special software program. Contrary to popular belief, you will have close  contact with other students and the instructor. Evaluating the Program There are a lot of questions to ask before you make your selection, such as: How do students interact with each other? ★Online programs can use chat rooms, instant messaging, teleconferencing, and video conferencing to communicate. The key is to find a program that has this interaction built into it and even requires it. ★What kind of reputation does the school have? It may seem simple-a good school will have a good online program. This reputation,however, may not be as straightforward as you think. It's not uncommon for a great school to have a weak program or two. So you'd better look at the overall quality of the school and make a judgment. The Employers' View As more and more employees get online degrees and use them in the workforce(职场) ,  hiring managers will begin to feel more secure about the quality of education these people have. 小题1:In which way is online education special? A.If you get sick, you'll miss the lecture. B.There are lectures, but you don't need to meet the lecturers. C.If you get a phone call during class, you will miss something. D.There are assignments, and you must hand them to your instructor. 小题2:What is the most important part of online communication? A.To use e-mails. B.To look for a program with interaction. C.To use chat rooms and instant messaging. D.To use teleconferencing and video conferencing. 小题3:For whom is the passage probably written? A.College students. B.Hiring managers. C.Adult students. D.High school students.
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【简答题】德尔菲法的特点有哪些?
【单选题】97型25HZ轨道电路的电气特性是:调整状态时,轨道继电器轨道线圈上的有效电压应(),用0.06Ω标准分路电阻线在轨道电路送、受电端轨面任一处分路时,轨道继电器端电压(分路残压)应()。
A.
不大于15V;不大于7.4V
B.
不大于15V;不小于7.4V
C.
不小于15V;不大于7.4V
D.
不小于15V;不小于7.4V
【多选题】德尔菲法的特点有以下几点
A.
匿名性
B.
反馈性
C.
量化性
D.
趋同性
【多选题】德尔菲法的特点有()。
A.
匿名
B.
高效
C.
反馈法
D.
量化法
【判断题】轨道电路处于分路状态时 , 轨道电路在任一点被列车占用 , 应能保证 GJ 或接收设备可靠停止工作。
A.
正确
B.
错误
【多选题】现代教育技术的基本思想包括( )。
A.
现代教育技术应用必须要以现代教育理论作指导
B.
现代教育技术要充分运用各种信息技术
C.
现代教育技术是以优化学习过程和学习资源为任务
D.
现代教育技术包括设计、开发、应用、管理和评价五个基本环节
【判断题】ZPW-2000A型无绝缘轨道电路分路状态在最不利条件下,在轨道电路任意一处轨面用0.15Ω标准分路电阻线分路时,载频为1700Hz、2000Hz、2300Hz时,短路电流不小于500mA;载频为2600Hz时,短路电流不小于450mA。
A.
正确
B.
错误
【单选题】ZP·Y2-18型移频自动闭塞轨道电路在分路状态下、道碴电阻最大时、用0.06Ω标准分路电阻分路任一地点,均应使分路残压在接收盘滤入处小于或等于( )mV。
A.
90
B.
100
C.
110
D.
120
【单选题】ZPW-2000系列(分路状态)在最不利条件下,用0.15分路电阻在轨道电路任一处轨面分路时(电气绝缘节区域内除外),轨道电路接收器输入电压不大于()
A.
100mV
B.
140mV
C.
180mV
D.
220mV
【多选题】德尔菲法的特点有哪些?
A.
吸取众多专家的意见,避免了个人预测的片面性
B.
采取匿名的、“背靠背”的方式进行,避免了从众的行为
C.
采取多轮预测的方式,准确性较高
D.
有利于专家根据别人的意见修正自己的意见和判断,不至于碍于情面而固执己见
E.
反复多轮修改,效率较低
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