Which of the following can be used to ensure that once a row has been inserted in table TABLEX, the column MAINID in that row cannot be updated?（）A、Define the column MAINID as NOT UPDATABLEB、Define the column MAINID as a PRIMARY KEYC、Define the column MAI

题目

Which of the following can be used to ensure that once a row has been inserted in table TABLEX, the column MAINID in that row cannot be updated?（）

A、Define the column MAINID as NOT UPDATABLE
B、Define the column MAINID as a PRIMARY KEY
C、Define the column MAINID as a FOREIGN KEY
D、Define an UPDATE trigger on table TABLEX

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1.A dog or a cat can teach us a lot about human nature. They are a lot more like us ______some might think.A. thatB. whatC. thanD. which

2.Which of the following methods can move files in clear text and can be easily intercepted?()A.RSHB.SNMPC.FTPD.TELNET

3.（）According to the passage, which of the following is NOT true?A．People who live in cold climates had better paint the walls of their houses white.B．Many women like to be in white on their wedding day because it’s the color of purity.C．Sometimes colors can affect our feelings and moods.D．Wearing green can give us more energy when we are feeling tired.

4.Which of the following infinitives is used as the object complement()?A.Do you know what to say to a person on his birthdayB.It takes us about 45 minutes to go to the stationC.we can see buses come and go in a busy streetD.It is too late to catch the 9:30 train

更多“Which of the following can be us”相关问题

第1题：

Which of the following is not talked in the passage as which can help us communicate?
A.books and magazines B.TV and films C.newspapers D.radio

正确答案：C
第2题：

Which of the following shows the proper rhythmical pattern of the sentence?

A．′Come to ′see us at our ′new a′partment.
B．′Come to ′see us at′our new ′apartment.
C．′Come to ′see us ′at our ′new ′apartment.
D．′Come to ′see us ′at our ′new a′partment.

答案：A
解析：
考查句子重读。一般来说，句子中的实词需要重读，比如名词、动词、形容词、副词、数词等。虚词多数情况下不重读，比如冠词、介词、物主代词(形容词性)、连词、感叹词等。故A项正确。
第3题：

Which of the following technologies can improve convergence time following a link failure in a serviceprovider network？（）
- A、MPLS TE FR
- B、MPLS VPN
- C、BFD
- D、RSVP
- E、VPLS
- F、SNMP
正确答案:C
第4题：

Which of the following protocols can be found at the application layer?（）
- A、Telnet
- B、TCP
- C、SNMP
- D、UDP
正确答案:A
第5题：

Which of the following are storage technologies that can be hot swappable？（）
- A、SCSI
- B、SAS
- C、ATA
- D、IDE
- E、CMOS
正确答案:A,B
第6题：

To which of the following resources can a lock be applied?（）
- A、Row
- B、Alias
- C、Bitmap
- D、Column
正确答案:A
第7题：

单选题
Which of the following could NOT get benefit from the devaluation of US dollar?
A
Foreign visitors in the US.
B
Foreign investors.
C
Exporters of America.
D
American visitors to other countries.

正确答案： B
解析：
推理判断题。文章很大一部分内容在阐述美元贬值造成的负面影响，而在末尾第七、八段谈到了正面影响。综观全文，美元贬值使美国国内的French investment迅速攀升，America exporters也面临新的发展机遇。所以B、C两项都是美元贬值的受益方面。文章中提及到欧洲旅游的美国游客会蒙受损失，由此可推断，A“到美国旅游的欧洲游客”也是受益方，所以选D。
第8题：

单选题
Please send us as soon as possible samples of the following goods _____ listed in your current catalogue.
A
which
B
as
C
what
D
for which

正确答案： D
解析：暂无解析
第9题：

单选题
Which of the following can NOT describe the man?
A
Desperate
B
Thin
C
Miserable
D
Conspicuous

正确答案： B
解析：
由文中描写男子的词语“haggard”、“the sadness in his dark eyes”、“with a certain bitterness in his eyes hopelessness in his form”分别标明这个男人憔悴，痛苦，绝望。D项“显眼的”在原文没有体现。
第10题：

Which of the following statement is NOT true?
A. When you run out of money, you can ask your partner to call back.
B. Telephone books in the US have different colors.
C. The state of Oregon has several area codes.
D. An area code is necessary in making a long-distance call.

正确答案：C
40．答案为C 从全文可知A、B、D选项是正确的陈述，从第一段可知一个地区只有一个区号，不论该地区是大是小。
第11题：

Which of the following is not mentioned in this article?__________

A.The number of the Chinese students studying in the US
B.The Chinese government's reaction to this affair
C.The time when the US delegation will leave Beijing
D.The increase of the US students that study in China

答案：C
解析：
文章第六段“Morethan63，000Chinese students are currently studyingintheUnitedStates”可以排除A项；文章第二段可以得知政府对这次事件的反应是号召的，故排除B；文章倒数第三段“…shows that6．389 us students eame to China in the 2005—2006 academic year，up 35 percent year-on—year．”可以知道在中国
学习的美国学生增加了．排除D。故答案选C。
第12题：

Please send us as soon as possible samples of the following goods _____ listed in your current catalogue.
- A、which
- B、as
- C、what
- D、for which
正确答案:B
第13题：

Which of the following methods can move files in clear text and can be easily intercepted?（）
- A、RSH
- B、SNMP
- C、FTP
- D、TELNET
正确答案:C
第14题：

Which of the following tools can be used to identify the location of a network outage?（）
- A、traceroute
- B、netstat
- C、nslookup
- D、ping
正确答案:A
第15题：

单选题
Which of the following is not expressed in the text?
A
Short answers limit your chances of creating a positive impression.
B
All over the world, candidates are expected to wear a suit to a job interview.
C
Showing interest in a company may increase your chances of being offered a job.
D
Interviewers can “read between the lines” (that is, they can understand more about us than we say).

正确答案： C
解析：
B项“全世界的面试都需要穿西服”在文中并没有提及。
第16题：

单选题
Which of the following technologies can improve convergence time following a link failure in a serviceprovider network？（）
A
MPLS TE FR
B
MPLS VPN
C
BFD
D
RSVP
E
VPLS
F
SNMP

正确答案： B
解析：暂无解析
第17题：

单选题
The minimum range at which a target can be detected is basically determined by which of the following?（）.
A
persistence
B
pulse repetition rate
C
pulse length
D
rotation rate

正确答案： D
解析：暂无解析

Which of the following can be used to ensure that once a row has been inserted in table TABLEX, the column MAINID in that row cannot be updated?（）A、Define the column MAINID as NOT UPDATABLEB、Define the column MAINID as a PRIMARY KEYC、Define the column MAI

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