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单选题
Piterniek A B. Functions and capabilities of online searching systems: a checklist[J].Online Review,1989,13(6):466-469. 是哪种信息类型的著录格式（）。
A
期刊
B
图书
C
会议文献
D
学位论文
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下列E-mail地址合法的是( )。A．shjkbk@online.sh.cnB．shjkbk.online.sh.cnC．online.sh.cn@shjkbkD．cn.sh.online.shjkbk
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某用户所用的计算机主机域online.sh.cn，用户名为user1，那么他的E-mail地址为___。( )A.user1@online.sh.cnB.B. @user1.online.sh.cnC.online.sh.cn@user1D.user1.online.sh.cn
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A SELECT statement can be used to perform these three functions:1. Choose rows from a table.2. Choose columns from a table3. Bring together data that is stored in different tables by creating a link between them. Which set of keywords describes these capabilities? （）A. difference, projection, joinB. selection, projection, joinC. selection, intersection, joinD. intersection, projection, joinE. difference, projection, product
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Object-oriented DBMS integrated a variety of(81)data types-such as business procedures, graphics, pictures, voice and annotated text.Object orientation also makes a(82)to application development efficiency. It makes the data, functions, attributes, and relationships an integral part of the(83). In this way, objects can be reused and replicated.Some leading RDBMS vendors support the concept of integrating object management capabilities with their current line of relational products. That capability enable users to the development cycle, since integrity logic and business roles no longer need to be programmed(84)each application.A．toolB．inC．ideaD．contributionE．real-world
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Most smart phones have（ ）service capabilities, which means that apps that combine the phone users location with the availability of retail stores and services can be interwoven into creative mobile business opportunities.A. short messaging service B. global positioning satellite(GPS)C. online banking D. EDI
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参与诺鑫银行移动金融营销的电商中有十多家团购网站，其采用电商模式 O2O。那么，O2O是指( )。
A. Online To Offline
B. Offline To Offline
C. Offline To Online
D. Online To Online
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Most smart phones have （）service capabilities, which means that apps that combine the phone user's location with the availability of retail stores and services can be interwoven into creative mobile business opportunities.
A.short messaging service
B.global positioning satellite(GPS)
C.online banking
D.EDI
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海利公司的主机（haili）在上海热线上的正确域名是（）A、online.haili.sh.cnB、haili.online.sh.cnC、haili.online.cn.shD、online.haili.cn.sh
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A SELECT statement can be used to perform these three functions: 1. Choose rows from a table. 2. Choose columns from a table 3. Bring together data that is stored in different tables by creating a link between them. Which set of keywords describes these capabilities?（）A、difference, projection, joinB、selection, projection, joinC、selection, intersection, joinD、intersection, projection, joinE、difference, projection, product
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Piterniek A B. Functions and capabilities of online searching systems: a checklist[J].Online Review,1989,13(6):466-469. 是哪种信息类型的著录格式（）。 A、期刊B、图书C、会议文献D、学位论文
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All platforms running the Junos OS separate the functions of control and forwarding.C
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All platforms running the Junos OS separate the functions of management and routing.
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单选题下列E-mail地址合法的是（）。A
shjkbk.online.sh.cnB
shjkbk@online.sh.cnC
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考题
单选题Which of the following is NOT true according to the passage?A
The models of the online fashion stores were not suitable.B
Some online fashion stores still make profits.C
There are online stores in Italy that make money.D
Sweden’s online stores are doing well by discount.
考题
多选题Which two are true about aggregate functions?（）AYou can use aggregate functions in any clause of a SELECT statement.BYou can use aggregate functions only in the column list of the select clause and in the WHERE clause of a SELECT statement.CYou can mix single row columns with aggregate functions in the column list of a SELECT statement by grouping on the single row columns.DYou can pass column names, expressions, constants, or functions as parameter to an aggregate function.EYou can use aggregate functions on a table, only by grouping the whole table as one single group.FYou cannot group the rows of a table by more than one column while using aggregate functions.
考题
单选题A SELECT statement can be used to perform these three functions: 1.Choose rows from a table. 2.Choose columns from a table. 3.Bring together data that is stored in different tables by creating a link between them. Which set of keywords describes these capabilities?（）A
difference, projection, joinB
selection, projection, joinC
selection, intersection, joinD
intersection, projection, joinE
difference, projection, product
考题
单选题What is the best title for the passage?A
Ups and Downs of Online BusinessB
Online Business vs Traditional BusinessC
Apparel Online StoresD
The Future of Online Stores
考题
单选题What is true of using group functions on columns that contain NULL values?（）A
Group functions on columns ignore NULL values.B
Group functions on columns returning dates include NULL values.C
Group functions on columns returning numbers include NULL values.D
Group functions on columns cannot be accurately used on columns that contain NULL values.E
Group functions on columns include NULL values in calculations if you use the keyword INC_NULLS.
考题
单选题You add an Online Responder to an Online Responder Array. You need to ensure that the new Online Responder resolves synchronization conflicts for all members of the Array. What should you do（）A
From Network Load Balancing Manager， set the priority ID of the new Online Responder to 1.B
From Network Load Balancing Manager， set the priority ID of the new Online Responder to 32.C
From the Online Responder Management Console， select the new Online Responder， and then select Set as ArrayD
From the Online Responder Management Console， select the new Online Responder， and then select Synchronize
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单选题Which of following functions is not one of the functions of air conditioner?（）A
refreshing the airB
making person upsetC
adjusting the air humidityD
adjusting the air temperature
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