【正确答案】 D

【答案解析】[听力原文]
Is there a dark side to the computer revolution? Do computers threaten the health of our society? You may have negative answers. The truth of the matter, however, is that any new technology—computers included—has a "dark" side.
Look at the internal combustion engine, for example. Everyone knows how cars, trucks changed the way people lived. But it also brought problems along with it. Cars are deadly weapons in the right hands of poor drivers. Their exhaust gases pollute the air. The problems posed by the computer revolution are quite different of course.
Many assembly line jobs, for example, will be taken over by robots and computerised machinery. Since many of these jobs are boring and even dangerous, that seems like a step in the direction. But it"s a big worry to the people whose jobs are threatened.
Quite a different problem, but one that is causing growing concern, is that computers may violate people"s privacy. Almost everyone agrees that it is necessary to share information that government agencies have gathered and stored in their computers, in order to track down criminals, and stop waste. But almost everyone, at the same time doesn"t agree that every government should have access to the computer files of every other government agency.
Yet another problem is computer crime. Clever criminals are finding ways to break computer codes and transfer millions of dollars to their accounts.
The list could go on. But if we want computers to work for us, we"ll have to find ways to keep people from using computers against us, as we deal with the problems the vehicles cause instead of giving up the vehicles.