If you are looking【C1】information, library shelves are a good place【C2】. But if you need up-to-the-minute data o

admin2022-07-24 97

问题 If you are looking【C1】________information, library shelves are a good place【C2】________. But if you need up-to-the-minute data or have specialized needs, you may【C3】________a computerized database more useful, 【C4】________expensive, and less time consuming. A database, a file of【C5】________on one subject or family of subjects, can be【C6】________and maintained in a computer’s memory. The speed of the computer then enables you【C7】________any item in this file almost instantly.
The three main types of databases are statistics, bibliographies (书目), and full text. Statistical databases store vast【C8】________of numerical (数字的) data, such as wage and price indexes, census (人口普查) information, foreign exchange rates, and bond prices. Bibliographic databases store references and【C9】________of articles【C10】________periodicals and newspapers. Full text databases offer the complete texts of such materials【C11】________newspaper, magazine and journal articles.
【C12】________databases exist today, and their numbers are【C13】________Many companies【C14】________their in-house database, 【C15】________is accessible【C16】________employees through computer terminals or microcomputers. 【C17】________addition, several hundred commercial data bases are now available【C18】________the public, with literally millions of information readily retrievable (可检索的). These databases cover specific【C19】________such as law and financial【C20】________, or general information, such as sports and weather data.
【C19】

选项 A、fields
B、earth
C、situations
D、books

答案A

解析 fields“领域”，earth“土地，地球”，situations“情况，状况”，books“书本”。由句意可知，此处应是覆盖了特定的领域，故选A。

转载请注明原文地址:https://kaotiyun.com/show/Vr6D777K

本试题收录于：公共英语二级笔试题库公共英语（PETS）分类

公共英语二级笔试

公共英语（PETS）

相关试题推荐

随机试题

最新回复(0)

If you are looking【C1】information, library shelves are a good place【C2】. But if you need up-to-the-minute data o

公共英语二级笔试

公共英语（PETS）

下面的程序是求菲波那契(Fibonacci)数列的前10项。已知该数列的前两项都为1，即F(1)=1，F(2)=1；而后面各项满足：F(n)=F(n-1)+F(n-2)。请在程序的每条横线处填写一条语句，使程序的功能完整。注意：请勿改动main(