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[单选题]
在下面的描述中，正确的是____。
A
A、外存中的信息可直接被CPU处理B、键盘是输入设备，显示器是输出设备C、操作系统是一种很重要的应用软件D、计算机中使用的汉字编码和ASCII码是相同的
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B
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(考生单击窗口下方的“打开应用程序”启动Outlook)请按照下列要求，利用Outlook新建邮件，并将考生文件夹下的网页文件“刘若英新歌.htm”选作为附件，最后将该邮件保存到草稿中。收件人邮箱地址为：fox@163.com邮件主题：问题解答邮件内容：参考教科书第56页
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1.
下列选项中，符合绝对感受性和绝对感觉阈限在数量上关系的是( )
2.
21. There is no doubt that new technologies will also play an important role in language teaching in the twenty-first century. Indeed, the use of technology in foreign language learning has constituted another important revolutionary movement in our discipline (学科）in the last half of the twentieth century. Although it has clearly not been a methodological revolution，technological innovation has played an important role in the recent history of language teaching and is bound to have a profound effect on the way that languages are taught in the future. Beginning with the introduction of filmstrips, audiotapes, and language labs in “direct method” and “audiolingual” classroom over forty years ago, technological innovation has moved from the increased use of cassette tapes, videotapes, and overhead projectors and cameras in the past several decades to the introduction of CD-ROMs and the Internet in the 1990s. The possibilities for computer-enhanced language teaching have most recently been explored in distance education programs as well as in the use of local area networks, computer-assisted reading programs, and web-based classroom activities.Though the use of technology is nothing new in foreign language teaching, its exact role in the curriculum is still being assessed and questioned, particularly in light of the rapidly changing nature of technological aids to instruction. Rather than seeing technology as just another ancillary (助手） to be added to our teaching devices, we need to evaluate its potential for enhancing classroom learning as well as for facilitating (使……便利）student-centered, independent learning outside the classroom. In using technological aids and computer-mediated (计算机为中介的）materials in instruction, we also need to bear in mind the level of proficiency of our students and their ability to benefit from the materials that can be used for them. The use of authentic materials is going to be discussed in more detail in a later section of this chapter and in subsequent chapters.(10分)21.1 This passage is mainly about____.(2分)A. the role technology plays in foreign language learningB. the role technology plays in foreign language teachingC. the role computer plays in language learning and language teachingD. the role technology plays in foreign language learning and teaching
3.
2. 下级机关向上级机关汇报工作，反映情况，应使用的文种是
4.
7. A. assure B. ensure C. tend D. lead
5.
19．国际金融体系的核心层是
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