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  3. Online distance learning is an instructional system which connects learners

Online distance learning is an instructional system which connects learners

游客2023-07-26  60
问题     Online distance learning is an instructional system which connects learners with educational resources. Students work on their own at home, at work, or at school and communicate with faculty and other students via e-mail, electronic forums, videoconferencing (视频会议), chat rooms, bulletin boards, instant messaging and other forms of computer-based communication. There are both advantages and disadvantages to online distance learning.
    There are many benefits to using online distance learning environments. Online education is available all the time and anywhere. However, there are drawbacks for some learners. The online learner only has the written text and no other face-to-face cues. This may confuse the learner and cause misunderstanding. While distance learning allows for openness, it is also cumbersome (缓而缺乏效率) because it is done by e-mail messages and writing and therefore may take more time than face-to-face learning. The sheer bulk of messages can sometimes be overwhelming for many online students.
    Universities, colleges and schools use virtual online distance learning environments. These are important for students who may be unable to attend classes for various reasons like illnesses or busy everyday schedules. Some learners just want to further their studies at home. They enjoy the convenience of home learning as they take regular programs or enrichment classes.
    Online courses keep learners very occupied at all hours. There are a great number of messages and other online resources to read and respond to. Most learners have regular jobs or attend regular school classes on ground as well. However, the benefits are clear. Online distance learning is becoming very popular. Some virtual online classes have become a profitable business as they replace regular traditional means of learning. [br] Online courses keep learners very ______.
选项 A、happy
B、busy
C、satisfied
D、free to do many things
答案 B
解析 细节题。文章第二段的倒数两句，以及最后一段的第一句都指出，由于大量的电子信息、邮件需要阅读及回复，远程课程使学生们非常忙碌。
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