单选题We are taught that a business letter should be written in a formal style ______ in a personal one. A. rather than B. other than C. better than D. less than

单选题Woman: I’ve just been reading through your last project report.Man: I hope you didn’t find much wrong in it.A. On the contrary B. On the other handC. Don't forget D. Don't be silly

单选题Man: That was such an interesting movie. I believe you enjoyed it as much as I did. Woman: Well, I dozed off after the first ten minutes. Question: How did the woman in the conversation feel about the movie?

单选题Mobility is one of the characteristics often ______ executives, and they must accustom themselves to moving quite regularly.

单选题Heat is always being transferred in one way or another, ______ there is any difference in temperature.

单选题Speaker A. Did you know that Whitney Houston was giving a concert last night in the town?Speaker B: ______

单选题Immigrants are consumers as well as producers, so they create jobs as well as taking them. And the work they do need not be at the expense of native workers. Immigrants often hold jobs that natives are unwilling to accept at any feasible wage. Also, immigrants sometimes help to keep industries viable (能存活的) that would otherwise disappear altogether, causing employment to fall. This was the conclusion of a study of the Los Angeles garment industry in the 1970s and 1980s. And when immigrants working for low wages do put downward pressure on natives' wages, they may raise the (real) wages of natives in general by keeping prices lower than they otherwise would be. In theory, then, the net effect of immigration on native wages is uncertain. Unfortunately, most of the empirical (经验主义的) research on whether immigrants make natives worse off in practice is also inconclusive except the effect, one way or the other, seems small. Most of this research has been done in America: if there were any marked influence on wages, that is where you would expect to find it, given the scale of immigration and the tendency of the newcomers to concentrate in certain areas. But most studies have compared wages and employment in areas with many immigrants to wages and employment in areas with few. For instance, one examined the impact of sudden and notorious inflow of refugees to Miami from the Cuban port of Mariel in 1980. Within the space of a few months, 125000 people had arrived, increasing Miami's labor force by 7%. Yet the study concluded that wages and employment among the city's natives, including the unskilled, were virtually unaffected. Another study examined the effect of immigration on wages and employment of those at the bottom of the jobs ladder-unskilled blacks and Hispanics. It found that a doubling of the rate of immigration had no detectable effect on natives. The most recent work, admittedly, has tended to question these findings. Using more detailed statistics and more sophisticated methods than the earlier studies, this work has tended to find that immigrants' wages take longer to rise to the level of the natives' wages than has been supposed. This implies a more persistent downward pressure on the host economy's labor market. Typically these studies find that immigration does depress unskilled natives' wages to a small extent. But nearly all economists would agree that the effects of immigration are insignificant in relation to other influences.

单选题There is no objection ______ the plan immediately.

单选题Mobile phones have proved to ______ with flight instruments and have a negative effect on flight safety.

单选题The questions are certain to ______ careful consideration before any major decision.

单选题The ultimate aim of this art school is to fully bring out the artistic______in the children.

单选题Participants in the Shanghai Co-operation Forum ______ regional teamwork to promote investment and economic development. A. cursed B. echoed C. bounced D. hailed

单选题The phrase “soak up” in the last Para. probably means____.

单选题Woman: I don't imagine you have any interest in attending that lecture on drawing, do you?Man: Oh, yes, I do. Now that you reminded me of it.Question: What do we learn about the man from the conversation?

单选题Many species have ______ before man can document them properly.

单选题Sometimes an Englishman is______enthusiastic, emotional, excited, etc than any other na tionality, but tends to display his feelings far less.

单选题A complete investigation into the accident should lead to improved standards and should ______ new operating procedures.

单选题The Chinese have used a method called acupuncture (针灸) to perform operations for about 4,000 years without putting the patient to sleep. This involves placing flexible needles into certain parts of the body. The needles are available in a number of stores in China and anyone may buy them. To learn how to use the needles takes about one month of training. But to be skillful requires greater time. The person who performs the acupuncture knows how to put in the needles so the needles themselves are not painful. This person also knows where to place the needles so the patient feels no pain in the area where the operation is to be performed. A particular operation might require 25 or more needles placed in various parts of the body. But now this operation requires only 3 or 4 needles. Today, the Chinese doctors are trying to learn more about acupuncture. They are trying to develop a convincing theory to explain how the needles work in preventing pain, or why a needle in the wrist, for example, would prevent the pain in the area of the mouth. A patient who needs an operation is given a choice between having acupuncture or having one of the chemicals used for putting him to sleep. It has been estimated that over half of the patients choose acupuncture because there is no sickness after the operation because the chemical may make the patient sick for a few hours or a day.

单选题Man: How do most students find a job after they graduate?Woman: They usually look for a job by searching the want ads in the newspaper.Question: What does the woman mean?

单选题______ for my illness I would have lent him helping hand.