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【单选题】
（ 47 ）下列关于日志的叙述中，哪一个是不正确的？A.
）日志登记的顺序严格按照事务在执行中各操作发生的实际顺序登记
B.
）必须先把对数据库的修改写到外部数据库中，再把日志记录写到外存的日志文件中
C.
）对事务故障的恢复一般首先反向扫描日志文件查找该事务的更新操作
D.
）对系统故障的恢复一般首先正向扫描日志文件，找出故障发生前已提交的事务
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【单选题】You have just changed the IP address on a computer named computer5 in your domain from 172.31.1.10/24 to 172.31.1.110/24. You were communicating with this computer from your workstation fine right bef...
A.
arp -d
B.
ipconfig /flushdns
C.
tracert computer5
D.
ping -6 172.31.1.110
【单选题】Futurists claim that we must______.
A.
increase the production of literature
B.
use' poetry to relieve modem stress
C.
develop new modes of expression
D.
avoid using adjectives and verbs
【单选题】As citizens of advanced but vulnerable economies, we must either relentlessly increase the quality of our skills or see our standard of living erode. For the future, competition between nations will b...
A.
Oil.
B.
Technological skill.
C.
Natural resources.
D.
Education.
【单选题】Futurists claim that we must ______.
A.
increase the production of literature
B.
use poetry to relieve modern stress
C.
develop new modes of expression
D.
avoid using adjectives and verbs
【单选题】王长喜四级标准听力1
A.
The computer doesn’t work properly.
B.
Peter is writing an essay on environment.
C.
Mary is much better than Peter in using computers.
D.
Peter is taking a computer class which is helpful.
【简答题】A. The twenty-third Olympic s. B. Los Angeles hosting the Olympics. C. Using computers before and during the twenty-third Olympics. D. A sophisticated computer.
【单选题】[音频]
A.
By remote controlled parking systems.
B.
By drivers themselves.
C.
By GPS navigation systems （全球定位导航系统）.
D.
By advanced computers.
【简答题】A.Language was the first invention of mankind. B.There was no greater invention than language. C.Most of man's inventions depended on language. D.There were so many languages in the world. 24. A.Commu...
【简答题】Computers have brought about many changes in the ____________.
【单选题】Computers ______ their place in ordinary people’s homes.
A.
have been found
B.
found
C.
find
D.
have found
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