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【简答题】
Directions: In this section, you will hear a passage three times. When the passage is read for the fifi rst time, you should listen carefully for its general idea. When the passage is read for the second time, you are required to fill in the blanks numbered 16 to 23 with the exact words you have just heard. For blanks numbered from 24 to 26 you are required to fifi ll in the missing information. You can either use the exact words you have just heard or write down the main points in your own words. Finally, when the passage is read for the third time, you should check what you have written. The World Wide Web (the Web or WWW) is a huge computer database. On the Web, you can fi nd a great deal of information on a(n) 1____ variety of topics, most of it free. If you have an Internet connection and a program to read Web fi les 2____ , you can take advantage of this useful resource. There are 3____ hundreds of thousands of Web sites (computer-based information stores) located all over the world. They hold great amounts of information of personal, 4____ , general and commercial interest. A diverse range of 5____ , including educational institutions, libraries, companies, government agencies, professional organizations, and even individuals, have web sites. You can fi nd information on almost any subject that you can 6____ imagine. The World Wide Web can be described as 7____ , because you choose that path that you want to take to fi nd information. Each web page is linked to other web pages. Certain words or phrases in the text are underlined and in a 8____ color, and if you click on those words, you will open another page about that topic. By following these links, you can fi nd more information about the topic you are interested in. To use the Web, you need a computer which has a connection to the Internet and which has a browser 9____, such as Internet Explorer or Netscape. Netscape seems to be taking over as the most commonly used browser at this moment. Most web pages are linked to other parts of the document, to other web pages at the same site or to other sites. You can click on words, phrases, or lines which are underlined and in a different color to jump to other parts of the document , other pages or other sites. Believe it or not, you can jump to anywhere throughout the world. You do not type the site’s address each time. In this way, you can continue to search for information related to your area of 10____ .
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【单选题】使用的电气设备按有关安全规程,其外壳应()。
A.
去除
B.
保护性接零或接地
C.
防锈漆
D.
漆成红色
【简答题】使用的电气设备按有关安全规程,其外壳应()。
【简答题】【 】是Android程序中的四大组件之一,为用户提供可视化界面及操作。
【多选题】下列有关盈亏平衡分析的说法中,正确的是( )
A.
根据生产成本和销售收入与销量之间是否为线性关系,盈亏平衡分析可分为线性盈亏平衡分析和非线性盈亏平衡分析
B.
当企业在小于盈亏平衡点的产量下组织生产时,则企业盈利
C.
全部成本可以划分成固定成本和变动成本,借款利息应视为变动成本
D.
一般来讲,盈亏平衡分析只适用于项目的财务评价
E.
盈亏平衡分析不能揭示产生项目风险的根源
【单选题】使用的电气设备按有关安全规程,其外壳的防护措施有
A.
B.
保护性接零或接地
C.
防锈漆
【单选题】使用的电气设备按有关安全规程,其外壳( )。
A.
无需防护;
B.
须有保护性接零或接地;
C.
涂防锈漆;
D.
隔离防护
【单选题】Robert is said abroad, but I don’t know in which country he is.
A.
have been studying
B.
to have been studying
C.
have studied
D.
to have studied
【单选题】镇痛药静脉给药后评估时机为( )
A.
用药后15分钟
B.
用药后30分钟
C.
用药后45分钟
D.
用药后60分钟
E.
用药后2小时
【单选题】可编程序控制器在硬件设计方面采用了一系列措施,如对干扰的
A.
屏蔽、隔离和滤波
B.
降噪、屏蔽和滤波
C.
防潮、屏蔽和隔离
D.
防尘、隔离和滤波
【单选题】可编程序控制器在硬件设计方面采用了一系列措施,如对干扰的( )。
A.
屏蔽、隔离和滤波
B.
屏蔽和滤波
C.
屏蔽和隔离
D.
隔离和滤波
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