题目内容
About one o'clock a storm【C6】______suddenly. We ought to have noticed its approach but we were concentrating【C7】______outting steps, and before we had time to do anything, we were【C8】______by snow. We could not move up or down and had to wait motionless, getting colder and colder.【C9】______my hood(兜帽), my nose and cheeks were frost bitter and I dared not【C10】______a hand out of my glove to warm them.
After two hours of this, I realized we would have to do something to avoid being frozen【C11】______death. We stood from time to time through the mist, and I had【C12】______the outline of a dark buttress(扶垛)just above us; to descend in this wind was out of the【C13】______;our only hope was to【C14】______up to this buttress and dig out a platform. at the foot of it【C15】______we could put up our tent.
We climbed to this place and started to out away the ice. At first my companion seemed to regard the situation【C16】______hopeless but gradually the wind【C17】______and he cheered up. At last we had made a platform. big enough to【C18】______the tent and we did this as best as we could. We【C19】______into our sleeping bags and【C20】______sleep, feeling that we were lucking to be still alive.
【C1】
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What class are the man and woman probably taking？
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【C15】
In many businesses, computers have largely replaced paperwork, because they are fast, flexible, and do not make mistakes. As one banker said, "Unlike humans, computers never have a bad day. " And they are honest. Many banks advertise that their transactions are "untouched by human hands "and therefore safe from human temptation. Obviously, computers have no reason to steal money. But they also have no conscience, and the growing number of computer crimes shows they can be used to steal.
Computer criminals don't use guns. And even if they are caught, it is hard to punish them because there are no witnesses and often no evidence. A computer cannot remember who used it, it simply does what it is told. The head teller at a New York City Bank used a computer to steal more than one and a half billion dollars in just four years. No one noticed this theft because he moved the money from one account to another. Each time a customer he had robbed questioned the balance in his account, the teller claimed a computer error, then replaced the missing money from someone else's account. This man was caught only because he was a gambler. When the police broke up an illegal gambling operation, his name was in the records.
Some employees use the computer's power to get revenge on employers they consider unfair. Recently, a large insurance company fired its computer-tape librarian for reasons that involved her personal rather than her professional life. She was given thirty days' notice. In those thirty days, she erased all the company's computerized records.
Most computer criminals have been minor employees. Now police wonder if this is "the tip of the iceberg". As one official says, "I have the feeling that there is more crime out there than we are catching. What we are seeing now is all so poorly done. I wonder what the real experts are doing—the ones who really know how a computer works. "
The passage is mainly about
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