A.sex sites
B.gambling sites
C.violence sites
D.shopping sites
A.protect computers from virus
B.protect personal data from inadvertently disclosed
C.protect computers from being invaded by other persons
D.forbid other people sharing your personal data
开始考试点击查看答案A.the net-savvy workers are interested in searching theweb for sexual content
B.this quality assurance team have difficulty in makingsure that the blocking component effective for theparents request
C.the parents all over the world do not want the sexualwebsites to be blocked
D.the parents all over the world concern that theirchildren will be harmed by the sexual websites
开始考试点击查看答案A.practical for scientific purposes.
B.detrimental to scientific progress.
C.unimportant in most situations.
D.expedient, but of little long-term valu
开始考试点击查看答案A.Mathematicians may provide theories that areincompatible with those already devel-oped by scientists.
B.Mathematicians may define situations in a way that isincomprehensible to scientists.
C.Mathematicians may convince scientists that theoreticalassumptions are facts.
D.scientists may come to believe that axiomaticstatements are untru
开始考试点击查看答案A.work to explain real, rather than theoretical orsimplified situations.
B.know that well defined problems are often the mostdifficult to solve.
C.are unable to express their data in terms of multiplevariables.
D.are unwilling to relax the axioms they have developed.
开始考试点击查看答案A.The program cannot only block the harmful websitescomputer users but also refresh the address list.
B.The NIS program is free, but you should pay $19.95 peryear for the virus update.
C.Both the program and virus update are free.
D.Computer users should pay $19.95 every year the timethey begin to use the program.
开始考试点击查看答案A.it leads to more crime in society.
B.people view manners as old-fashioned.
C.rudeness on the street cannot be stemmed out.
D.C.rudeness on the street cannot be stemmed out.D.it can seriously affect our daily lif
开始考试点击查看答案A.has acquired a different meaning.
B.is too old-fashioned to use.
C.is preferred by feminists.
D.victimizes women insociety.
开始考试点击查看答案A.humorous
B.favorable
C.negative
D.traditional
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