[单项选择] 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, join
B. selection, projection, join
C. selection, intersection, join
D. intersection, projection, join
E. difference, projection, product

[单项选择] 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, join
B. selection, projection, join
C. selection, intersection, join
D. intersection, projection, join
E. difference, projection, product

[单项选择]An （） statement can perform a calculation and store the result in a variable so that it can be used later.
A. executable
B. input
C. output
D. assignment

[多项选择]Which two methods of authentication are used by the Infranet Controller for IPSec enforcement?（）
A. dial-up VPN
B. IKE authentication
C. XAuth authentication
D. shared IKE authentication

[单项选择]

The term "formal learning" is used in this paper to refer to all learning that takes place in the classroom, irrespective of whether such learning is informed by conservative or progressive ideologies. "Informal learning", on the other hand, is used to refer to learning which takes place outside the classroom.
These definitions provide the essential, though by no means sole, difference between formal and informal learning. Formal learning is decontextualised from daily life and, indeed, as Scribner and Cole (1973: 553) have observed, may actually "promote ways of learning and thinking which often run counter to those nurtured in practical daily life". A characteristic feature of formal learning is the centrality of activities that are not closely paralleled by activities outside the classroom. The classroom can prepare for, draw on, and imitate the challenges of adult life outside the classroom, but it cannot, by its nature, consist of these
A. Differences between modes of learning.
B. Deficiencies of formal learning.
C. Advantages of informal learning.
D. Social context and learning systems.

[单项选择]A basic cable tester can be used to do which of the following?（）
A. Assure end to end continuity of a UTP cable.
B. Locate the distance to a cable break.
C. Determine the CAT level of a UTP cable.
D. Determine the distance to the nearest wiring closet.

[单项选择]In the early 19th century, ______ actively used the ShermanAntitrust Act to stop monopolistic business mergers in the UnitedStates.
A. J.P. Morgan
B. Woodrow Wilson
C. Henry Rockefeller
D. Theodore Roosevelt

[单项选择]Which of the following should be used to ensure that all packets are received by every connecteddevice?（）
A. Hub
B. Router
C. Switch
D. Firewall

[单项选择]People in the 18th and 19th centuries used to sleep about 9. 5 hours a night because they had ______.
A. no drive and ambition
B. no electric lighting
C. the best sleep habits
D. nothing to do in the evening

[单项选择]Which Cisco IOS diagnostics command can disrupt the operation of a router under high-load conditions?（）
A. show running-config
B. show processes cpu
C. debug all
D. logging host ip address

[单项选择]Having read the last paragraph, we can conclude that
A. pride goes before a fall
B. practice makes perfect
C. no pains, no gains
D. failure is tile mother of Success

[单项选择]We are excited to learn that everyone can visit the newly—built museum for free.
A. 听说每个人都可以免费参观新建的博物馆，我们都很兴奋。
B. 令我们兴奋的是可以自由自在地从修缮一新的博物馆里学东西。
C. 一听说知道每个人都可以参观修缮一新的博物馆，我们便毫无顾忌地兴奋起来。
D. 了解到每个人都可自由参观新落成的博物馆时，我们都很兴奋。

[单项选择]According to Fozard's argument, people can make their brain work more efficiently by______ .
A. taking part in various mental activities
B. making frequent adjustments
C. going through specific training
D. constantly doing memory work

[单项选择]From the above-mentioned evidence, we can infer the woman __________.
A. was not hypnotized completely
B. was afraid of being hypnotized
C. was a good hypnotic subject
D. should have done better if she had cooperated better with the hypnotist

[单项选择]From the beginning of the text, we can conclude that
A. there is no discrimination against disabled people after Oct. 1.
B. the employers must assist those campaigners to complete their duties.
C. previous DDA only had restrictions on companies with more than 15 people.
D. the companies have to prepare new equipment for their disabled employees.

[单项选择]Which command is used to create a database file that it's structure is same as another one's in FoxPro DBMS ( )
A. CREATE
B. COPY
C. APPEND
D. INSERT

[单项选择]Part of the lake has been polluted. You can see the water is covered with ______ oil.
A. a coat of
B. a story of
C. a film of
D. a pad of

[单项选择]Under-used computer equipment can proliferate in large companies without a system to {{U}}monitor{{/U}} purchasing.
A. know
B. order
C. screen
D. watch