考博英語模擬

Questions 21 to 25 are based on the following passage. ,5?MRqCM
Moreand more, the operations of our businesses, governments, and financialinstitutions are controlled by information that exists only inside computermemories. Anyone clever enough to modify this information for his own purposescan reap substantial rewards. Even worse, a number of people who have done thisand 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 onwhat the computer is doing. But even if the crime is detected, the criminal maywalk away not only unpunished but with a glowing recommendation from his formeremployers.
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 weredetected by accident, not by systematic inspections or other securityprocedures. The computer criminals who have been caught may been the victims ofuncommonly bad luck.
For example, a certain keypunch (鍵盤打孔) operatorcomplained of having to stay overtime to punch extra cards. Investigationrevealed that the extra cards she was being asked to punch were for dishonesttransactions. In another case, dissatisfied employees of the thief tipped off (向…透露) the company that was being robbed.
Unlike other lawbreakers, who must leave the country, commit suicide, or go tojail, computer criminals sometimes escape punishment, demanding not only thatthey not be charged but that they be given good recommendations and perhapsother benefits. All too often, their demands have been met.
Why? Because company executives are afraid of the bad publicity that wouldresult if the public found out that their computer had been misused. Theyhesitate at the thought of a criminal boasting in open court of how he juggled(耍弄) the most confidential records right under thenoses of the company’s executives, a accountant, andsecurity staff. And so another computer criminal departs with just therecommendations he needs to continue his crimes elsewhere.

21.It can be concluded from the passage that ________.
A) it is still impossible to detect computer crimes today
B) computer crimes are the most serious problem in the operation of financialinstitutions
C) computer criminals can escape punishment because they can’t bedetected
D) people commit computer crimes at the request their company
22.It is implied in the third paragraph that ________.
A) many more computer crimes go undetected than are discovered
B) the rapid increase of computer crimes is a troublesome problem
C) most computer criminals are smart enough to cover up their crimes
D) most computer criminals are smart enough to cover up their bad luck
23.Which of the following is mentioned in the passage?
A) A strict law against computer crimes must be enforced.
B) Companies need to impose restrictions on confidential information.