首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
If you are looking【C1】______information, library shelves are a good place【C2】______But if you need up-to-the-minute data or have
If you are looking【C1】______information, library shelves are a good place【C2】______But if you need up-to-the-minute data or have
admin
2019-05-13
82
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. Fulltext 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://www.kaotiyun.com/show/uEgd777K
本试题收录于:
公共英语二级笔试题库公共英语(PETS)分类
0
公共英语二级笔试
公共英语(PETS)
相关试题推荐
Thestoryhappenedonacoldwinterafternoon.Twobeggars(101)alongaquietroad,asorry-lookingdog(102)them."
Accordingtothispassage,whatkindofvehicledidthespeakeralwaysrideinthepast?
Whatmadethewomannervous?
Whatdoesthespeakertalkabout?
Whatdoesthespeakertalkabout?
VerylittlerainfellonSymi.The76______peoplehavesavedeverydroptheycould.77______Butithasneverbeenenoughfort
GeorgeandCharlielivedinthesametownbeforetheyjoinedthearmy.Theyweresenttoanislandandstayedthereformoretha
Whatdoesthewomanneedtodoatthetravelagency?
ItissaidthatSally’sbeenpaintingforyearssinceshewasalittlegirl,______?
Travellingcanbeawonderfuladventure.Travellingbyairplane,however,canbeverytiring.Thefollowing【K1】______(be)somet
随机试题
等比数列{an}中的a5+a1=34,a5-a1=30,那么a3=()。
风湿热的治疗原则是()
抑制剂的作用是
根据企业所得税法的规定,企业的下列各项支出,在计算应纳税所得额时,准予从收入总额中直接扣除的有()。
A、B两公司都想借入3年期的500万美元借款,A公司想借入固定利率借款,B公司想借入浮动利率借款。因两家公司信用等级不同,市场向它们提供的利率也不同,具体情况见下表。根据以上资料,回答下列问题:两家公司可以选择的套利方案是()。
绝对反义词,也称互补反义词,这类反义诃意义上互相排斥,肯定甲必否定乙。肯定乙必否定甲;同时否定甲就必肯定乙,否定乙就必肯定甲。根据上述定义,下列属于绝对反义词的一组是()
设3阶方阵A的特征值λ1=1,λ2=2,λ3=3,对应的特征向量p1=(1,1,1)T,p2=(1,2,4)T,p3=(1,3,9)T.又向量β=(1,1,3)T,求Anβ.
以下选项中,不能作为合法常量的是
A.ControlofRespirationB.BeautyofFreshCutFlowersC.RoleofRespirationD.MostImportantAspectofFlowerCareE.Needfor
A、InMorocco,bothsatisfactionandoptimismhavedoubled.B、OptimismgrowsgenerallyintheArabworldinrecentyears.C、Many
最新回复
(
0
)