2. 外语
  3. We often hear the 【21】______ "Bug" while using computers. But what is a bug? In computer science, a bug 【22】______ an err

We often hear the 【21】______ "Bug" while using computers. But what is a bug? In computer science, a bug 【22】______ an err

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问题      We often hear the  【21】______   "Bug" while using computers. But what is a bug? In computer science, a bug  【22】______    an error in software or hardware. In software, a bug is an error in coding or logic that causes a program to malfunction or to  【23】______    incorrect results. Minor bugs, for example a cursor that does not behave as  【24】______    can be inconvenient or frustrating, but not damaging to  【25】______   . More severe bugs can cause a program to "hang" ( stop responding to  【26】______    and might  【27】______    the user with no  【28】______    but to restart file program. ), losing whatever  【29】______    work had not been saved. In  【30】______    case, the programmer must find and correct the error by the  【31】______    known as debugging. Because of the  【32】______    risk to important data, commercial application programs are tested and  【33】______    as completely as possible before release. Minor bugs found after the program becomes  【34】______    are corrected in next update; more  【35】______    bugs can sometimes be fixed with special software, called patches, that circumvents or otherwise  【36】______    its effects. In hardware, a bug is a recurring  【37】______    problem that prevents a system or set of  【38】______    from working together properly. The  【39】______    of the term reputedly goes back to the early days of computer at Harvard University was  【40】______    a moth caught between the contacts of a relay in the machine.
【36】
选项 A、alleviates
B、worsens
C、reduces
D、enhances
答案A
解析 本题考查对文章意义的理解和同义词辨析。这句话的意思是：更严重的病毒可以使用特殊的软件来阻止或降低其影响。worsen“使严重，恶化”；enhance“提高，促进”；alleviate(make less or earner to bear)“减轻，缓和”，如：alleviate severe unemployment缓解严重的失业状况。reduces(make small in size，weight，etc)“减少”。
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