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More and more, the operations of our businesses, governments and financial institutions are controlled by information that exist

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问题     More and more, the operations of our businesses, governments and financial institutions are controlled by information that exists only inside computer memories. Anyone clever enough to modify this information for his own purposes can reap big reward. Even worse, a number of people who have done this and been caught at it have managed to get away without punishment.
    It’ s easy for computer crimes to go undetected if no one checks up on what the computer is doing. But even if the crime is detected, the criminal may walk away not only unpunished but with a flowing recommendation from his former employers.
    Of course, we have no statistics on crimes that go undetected. But it’ s disturbing to note how many of the crimes we do know about were detected by accident, not by systematic inspections or other security procedures. The computer criminals who have been caught may have been the victims of uncommonly bad luck.
    Unlike other lawbreakers, who must leave the country, commit suicide, or go to jail, computer criminals sometimes escape punishment, demanding not only that they not be charged but that they be given good recommendations and perhaps other benefits. All too often, their demands have been met.
    Why? Because company executives are afraid of the bad publicity that would result if the public found out that their computer had been misused. They hesitate at the thought of a criminal boasting in open court of how he juggled(诈骗)the most confidential(保密)records tight under the noses of the company’ s executives, accountants, and security staff. And so another computer criminal departs with just the recommendations he needs to continue his crimes elsewhere.
It can be concluded form the passage that______.
选项 A、it is still impossible to detect computer crimes today
B、people commit computer crimes at the request of their company
C、computer criminals escape punishment because they can’ t be detected
D、computer crimes are the most serious problem in the operation of financial institutions
答案D
解析 从全文第一句可看出，许多公司，政府以及金融机构的运行都单单依靠电脑进行控制，所以可以推断，计算机犯罪是最严重的问题。选项D正确。从第二段第一句可知，如果没人检查电脑的运行情况，计算机犯罪是不容易被发现的。但不是说其不能够被发现。所以选项A、c都是不正确的。B项文中未提及。
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