单选题We shall send you commercial invoice, bills of lading and insurance certificates so that you earn ______ the goods on a D/P basis. A. consume B. complain C. concern D. claim

单选题A great number of graduate students were driven into the intellectual slum where in the United States the intellectual poor became the classic poor. A. in which B. at which C. when D. while

单选题A total of 4.6 million digital televisions have been sold, and the sales of HDTV sets have quadrupled since last year. Consumers have bought HDTVs to play their DVDs and to have clearer pictures and wide screens. Only a small percentage of the people who have purchased HDTVs, however, have actually hooked their TVs up to receive high-definition television digital signals. Perhaps television viewers are having trouble keeping up with the changes in technology. Even the manufacturers of HDTVs, like Mitsubishi, Thomson Multimedia, Sony, and Samsung seem to have a tough time learning how to make their sets work with the various digital TV formats because little standardization has been required or implemented in the industry. Some of the HDTVs weigh over 200 lbs., and a variety of retailers offer a delivery service to the buyer"s home to help install the heavy sets. This is known as a white-glove service and usually comes with an extra fee. After HDTV purchasers get their sets home and hook them up, they will still need to work to get the digital signals to their systems. Most of the industry"s cable providers do not yet offer high~definition programing, and only about 15% of commercial television stations have switched over to even the lowest improved digital pictures. Worse yet, viewers may need to install antenna before they can even get the digital signals to their new HDTV sets. Another frustration for home-theater seekers is that the current HDTV sets allow owners only to watch high-definition programs, not to record them.

单选题Betty was offended because she felt that her friends had ignored her purposefully at the party. A. desperately B. definitely C. decisively D. deliberately

单选题All in all, it is now beyond doubt that in size and scope the rapid global spread of the habit to wear jeans, however it may be explained, is an accident without precedent in the history of human attire. A. of wearing... incident B. wearing... event C. of wearing... event D. to be wearing... incident

单选题The government has hardly taken measures to crack down on these crimes when new ones occurred.

单选题I knew nothing of the motives behind his recent move, and I don"t know either the person to put him up to the action.

单选题He is too young to be able to ______ between right and wrong. A. discard B. discern C. disperse D. disregard

单选题To Err is Human by Lewis Thomas Everyone must have had at least one personal experience with a computer error by this time. Bank balances are suddenly reported to have jumped from $ 379 into the millions, appeals for charitable contributions are mailed over and over to people with crazy sounding names at your address, department stores send the wrong bills, utility companies write that they're turning everything off, that sort of thing. If you manage to get in touch with someone and complain, you then get instantaneously typed, guilty letters from the same computer, saying, "Our computer was in error, and an adjustment is being made in your account." These are supposed to be the sheerest, blindest accidents. Mistakes are not believed to be the normal behavior of a good machine. If things go wrong, it must be a personal, human error, the result of fingering, tampering a button getting stuck, someone hitting the wrong key. The computer, at its normal best, is infallible. I wonder whether this can be true. After all, the whole point of computers is that they represent an extension of the human brain, vastly improved upon but nonetheless human, superhuman maybe. A good computer can think clearly and quickly enough to beat you at chess, and some of them have even been programmed to write obscure verse. They can do anything we can do, and more besides. It is not yet known whether a computer has its own consciousness, and it would be hard to find out about this. When you walk into one of those great halls now built for the huge machines, and standing listening, it is easy to imagine that the faint, distant noises are the sound of thinking, and the turning of the spools gives them the look of wild creatures rolling their eyes in the effort to concentrate, choking with information. But real thinking, and dreaming, are other matters. On the other hand, the evidence of something like an unconscious, equivalent to ours, are all around, in every mail. As extensions of the human brain, they have been constructed the same property of error, spontaneous, uncontrolled, and rich in possibilities.

单选题According to some scientists, the computer {{U}}will do much harm{{/U}} to people's health as {{U}}smoking{{/U}} and drugs do.

单选题The last half of the 19th century ______ the steady improvement in the means of travel.

单选题Scarecely had the van turned the corner than the mirror came off. A. No more B. No sooner C. Not any D. No longer

单选题Obviously, the word "precipitation" most probably refers to ______

单选题He remained calm in the face of the {{U}}impending{{/U}} danger.

单选题Daylight saving time was instituted to increase productivity.

单选题Each year, in a never-ending cycle of death and rebirth , the rains sweep across southern Asia.

单选题A chasm appeared after the earthquake.

单选题One of the things we have to do to prevent a pandemic is to make sure people understand and know what they can do to minimize the {{U}}commotion{{/U}}.

单选题Traveling and meeting new people ______ the mind of young people． A．expanded B．enlarged C．broadened D．extended

单选题The newly released documents in connection with the protection of the local environments irritated the local people. A. engulfed B. enraged C. agitated D. agonized