单选题Why did Oolak take a gun when he went off alone?

单选题Evidence came up ______ specific sounds are recognized by babies as young as six months old. A. what B. that C. which D. whose

单选题There ought to be less anxiety over the perceived risk of getting cancer than ______ in the public mind today. A. exists B. exist C. existing D. existed

单选题He has been grinding out cheap romantic stories at the ______ of one a week.

单选题In order to be successful as an engineer, she had to become ______ at mathematics.

单选题O'Neill's ideas have been ______ to a great deal of criticism from those who consider them as scientific dreaming.

单选题The words Francis Key wrote on the back of an old letter "The Star Spangled Banner" became the national ______ of the United States.

单选题Daylight Saving Time begin at 2

单选题 Decide which of the choices given below would best complete the passage if inserted in the corresponding blanks. Mark the best choice for each blank on your ANSWER SHEET. A scientist who wants to predict the way in which consumers will spend their money must study consumer behavior. He must obtain{{U}} (31) {{/U}}both on resources of consumers and on the motives that{{U}} (32) {{/U}}to encourage or discourage money spending. If an{{U}} (33) {{/U}}were asked which of three groups borrow most—people with rising incomes,{{U}} (34) {{/U}}incomes, or declining incomes—he would{{U}} (35) {{/U}}answer: those with declining incomes. Actually, in the past, the answer was: people with rising incomes. People with declining incomes were next and people with stable incomes borrowed the{{U}} (36) {{/U}}. This shows us that traditional{{U}} (37) {{/U}}about earning and spending are not always{{U}} (38) {{/U}}. Another traditional assumption is that if people who have money expect prices to go up, they will{{U}} (39) {{/U}} to buy. If they expect prices to go down, they will postpone buying.{{U}} (40) {{/U}}research surveys have shown that this is not always{{U}} (41) {{/U}}The expectations of price increases may not stimulate buying. One{{U}} (42) {{/U}}attitude was expressed by the wife of a mechanic at a time of rising prices. Her family had been planning to buy a new car but they postponed this purchase.{{U}} (43) {{/U}}, the rise in prices that has already taken place may be resented and buyer's resistance may be evoked. The{{U}} (44) {{/U}}mentioned above was carried out in America. Investigations{{U}} (45) {{/U}}at the same time in Great Britain, however, yielded results that were more{{U}} (46) {{/U}}traditional assumptions about saving and spending patterns. The condition most contributive to spending{{U}} (47) {{/U}}to be price stability. If prices have been stable and people consider that they are{{U}} (48) {{/U}}, they are likely to buy. Thus, it appears that the common{{U}} (49) {{/U}}policy of maintaining stable prices is based on a correct understanding of{{U}} (50) {{/U}}psychology.

单选题Very few scientists ______ completely new answers to the world's problems.

单选题She said she wouldn't call us the next day, ______ she? A. would B. wouldn't C. did D. didn't

单选题Black and white are two common words. White means bright and purity, black is darkness and evil, but not always. Sometimes the words are used differently. White hats and black hats represent the traditional meaning of the words. The hats are symbols of the good guys and the bad guys in American western movements. White hats and black hats had a real purpose in the early days of motion pictures. The early movies were made with no sounds. So the movie directors put a white hat on the hero and a black hat on his opponent, the bad guy in the story. A black sheep is a person who does things that are not accepted, that violate tradition. A black sheep is rejected because he brings shame to his group. A family may have a member who is thought of as a black sheep, a person who is not welcome at family gatherings. Black is also used in some expressions that describe good things. Feeling in the black, for example, is a good situation for anyone. It is a business expression. It means that the company is earning money. The store that makes profit is in the black. The expression comes from the color of ink that is used in the books that record a company's profits or losses. Profits are written in black ink, losses are written in red. So when someone says his business is in the red, he means it is losing money. White usually means something good. A white-collar job, for example, is the kind of job many people seek. It is a job where you work at the desk, using your brain instead of your muscles. Usually white-collar jobs pay more than blue-collar jobs. These jobs are where you don't use your muscles. Sometimes white is used in an expression that is not good. Whitewash is such an expression. At first whitewash meant to paint over something with white paint, making it look better but now whitewash has different meaning, to hide or cover up mistakes or falls. A newspaper might report, for example, that the investigation of the train accident is a whitewash because investigators did not really try to discover who was responsible. Some expressions use black and white together. Someone may say to you that your proposal sounds all right but he wants to see it in black and white. He wants to see your proposal in writing, black ink on white paper. Some people are said to see things only in black and white. Now this expression, black and white, represent opposite extremes, with no middle ground between them. Most issues in the world are not so simple as black and white. One side of an issue is not all white or good and the other side is not all black, wrong or evil. In the real world there are many gray areas where black and white are mixed to represent the true situation.

单选题Certainly no creature in the sea is odder than the common sea cucumber. All living creature, especially human beings, have their peculiarities, but everything about the little sea cucumber seems unusual. What else can be said about a bizarre animal that, among other eccentricities, eats mud, feeds almost continuously day and night but can live without eating for long periods, and can be poisonous but is considered supremely edible by gourmets? For some fifty million years, despite all its eccentricities, the sea cucumber has subsisted on its diet of mud. It is adaptable enough to live attached to rocks by its tube feet, under rocks in shallow water, or on the surface of mud fiats. Common in cool water on both Atlantic and Pacific shores, it has the ability to suck up mud or sand and digest whatever nutrients are present. Sea cucumbers come in a variety of colors, ranging from black to reddish brown to sand color and nearly white. One form even has vivid purple tentacles. Usually the creatures are cucumber shaped—hence their name— and because they are typically rock inhabitants, this shape, combined with flexibility, enables them to squeeze into crevices where they are safe from predators and ocean currents. Although they have voracious appetites, eating day and night, sea cucumbers have the capacity to become quiescent and live at a low metabolic rate—feeding sparingly or not at all for long periods, so that the marine organisms that provide their food have a chance to multiply. If it were not for this faculty, they would devour all the food available in a short time and would probably starve themselves out of existence. But the most spectacular thing about the sea cucumber is the way it defends itself. Its major enemies are fish and crabs, when attacked, it squirts all its internal organs into water. It also casts off attached structures such as tentacles. The sea cucumber will eviscerate and regenerate itself if it is attacked or even touched; it will do the same if the surrounding water temperature is too high or if the water becomes too polluted.

单选题I've got thousands of jobs available at seventeen bucks an hour. The italicized word is used to modify ______. A. the object B. the verb C. the subject D. the prepositional phrase

单选题It happened that I went out that day. The italicized part is ______. A. the object B. an adverbial C. a predicative D. the subject

单选题The customer can have all the following in the restaurant EXCEPT _________.

单选题This sort of rude behaviour in public hardly ______ a person in your position. A. becomes B. fits C. supports D. improves

单选题The defense minister promised to keep the president ______ of the situation in the Middle East.

单选题What remains an important factor for the rising number of road accidents?