单选题She answered the difficult question, it was an immense load off her heart.

单选题He was said to have been {{U}}removed{{/U}} from the position of manager for a recent conflict wil an important customer.

单选题Many experts remain （skeptical） about his claims.

单选题Besides the backdrop of bad employment news and a cooling economy, which of the following causes the PLA to raise this years recruitment quota?

单选题Take {{U}}vigorous{{/U}} exercise for several hours a week. A. energetic B. physical C. regular D. free

单选题Hercules was the tallest man in the world.

单选题The steadily rising cost of labor on the waterfront has greatly increased the cost of shipping cargo by water.A. continuouslyB. quicklyC. excessivelyD. exceptionally

单选题The Cherokee Nation Long before the white man came to America, the land belonged to the American Indian nations. The nation of the Cherokees lived in what is now the southeastern part of the United States. After the white man came, the Cherokees copied many of their ways. One Cherokee named Sequoyah saw how important reading and writing was to the white man. He decided to invent a way to write clown the spoken Cherokee language. He began by making word pictures. For each word he drew a picture. But that proved impossible—there were just too many words. Then he took the 85 sounds that made up the language. Using his own imagination and an English spelling book, Sequoyah invented a sign for each sound. His alphabet proved amazingly easy to learn. Before long, many Cherokees knew how to read and write in their own language. By 1828, they were even printing their own newspaper. In 1830, the U.S. Congress passed a law. It allowed the government to remove Indians from their lands. The Cherokees refused to go. They had lived on their lands for centuries. It belonged to them. Why should they go to a strange land far beyond the Mississippi River? The army was sent to drive the Cherokees out. Soldiers surrounded their villages and marched them at gunpoint into the western territory. The sick, the old and the small children went in carts, along with their belongings. The rest of the people marched on foot or rode on horseback. It was November, yet many of them still wore their summer clothes. Cold and hungry, the Cherokees were quickly exhausted by the hardships of the journey. Many dropped dead and were buried by the roadside. When the last group arrived in their new home in March 1839, more than 4,000 had died. It was indeed a march of death.

单选题The contract between the two companies will expire soon.

单选题Differences of Policemen Real policemen hardly recognize any resemblance between their lives and what they see on TV. The first difference is that a policeman's real life revolves round criminal law. He has to know exactly what actions are crimes and what evidence can be used to prove them in court. He has to know nearly as much law as a professional lawyer, and what is more, he has to apply it on his feet, in the dark and rain, running down a street after someone he wants to talk to. Little of his time is spent in chatting, he will spend most of his working life typing millions of words on thousands of forms about hundreds of sad, unimportant people who are guilty of stupid, petty crimes. Most television crime drama is about finding the criminal: as soon as he's arrested, the story is over. In real life, finding criminals is seldom much of a problem. Except in very serious cases like murders and terrorist attacks little effort is spent on searching. Having made an arrest, a detective really starts to work. He has to prove his case in court and to do that he often has to gather a lot of difference evidence. At third big difference between the drama detective and the real one is the unpleasant pressures. first, as members of a police force they always have to behave absolutely in accordance with the law; secondly, as expensive public servants they have to get results. They can hardly ever do both. Most of the time some of them have to break the rules in small ways. If the detective has to deceive the world, the world often deceives him. Hardly anyone he meets tells him the truth. And this separation the detective feels between himself and the rest of the world is deepened by the simple-mindedness—as he sees it—of citizens, social workers, doctors, law-makers, and judges, who, instead of eliminating crime punish the criminals less severely in the hope that this will make them reform. The result, detectives feel, is that nine-tenths of their work is recatching people who should have stayed behind bars. This makes them rather cynical.

单选题It is said the houses along this street will soon be demolished.A. pulled downB. pulled upC. pulled offD. pulied in

单选题The once barren hillsides are now good farmland.

单选题In view of his poor health, the company allows him to retire at 45. A. Because B. As a result of C. In spite of D. Considering

单选题 {{B}}One Good Reason to Let Smallpox Live{{/B}} It's now a fair bet that we will never see the total extinction of the smallpox virus. The idea was to cap the glorious achievement of 1980, when smallpox was eradicated in the wild, by destroying the killer virus in the last two labs that are supposed to have it — one in the US and one in Russia. If smallpox had truly gone from the planet, what point Was there in keeping these reserves? {{U}} (1) {{/U}}reality, of course, it was naive to{{U}} (2) {{/U}}that everyone would let{{U}} (3) {{/U}}of such a potent potential weapon. Undoubtedly several nations still have{{U}} (4) {{/U}}vials.{{U}} (5) {{/U}}the last "official" stocks of live virus bred mistrust of the US and Russia,{{U}} (6) {{/U}}no obvious gain. Now American researchers have{{U}} (7) {{/U}}an animal model of the human disease, opening the{{U}} (8) {{/U}}for tests on new treatments and vaccines. So once again there's a good reason to{{U}} (9) {{/U}}the virus — just in{{U}} (10) {{/U}}the disease puts in a reappearance. How do we{{U}} (11) {{/U}}with the mistrust of the US and Russia?{{U}} (12) {{/U}}. Keep the virus{{U}} (13) {{/U}}international auspices in a well-guarded UN laboratory that's open to all countries. The US will object, of course, just as it rejects a multilateral approach to just about everything. But it doesn't{{U}} (14) {{/U}}the idea is wrong. If the virus{{U}} (15) {{/U}}useful, then let's make it the servant of all humanity — not just a part of it. smallpox n. 天花 vial n. 小瓶 auspices n. 赞助；支持 cap vt. 结束；覆盖 potent adj. 有效力的；强有力的 mistrust n. 不信任，怀疑

单选题Why So Risky in Chemical Factories Which is safer—staying at home, traveling to work on public transport, or working in the office? Surprisingly, each of these carries the same risk, which is very low. However, what about flying compared to working in the chemical industry? Unfortunately, the former is 65 times riskier than the latter! In fact, the accident rate of workers in the chemical industry is less than that of almost any of human activity, and almost as safe as staying at home. The trouble with the chemical industry is that when things go wrong they often cause death to those living nearby. It is this which makes chemical accidents so newsworthy. Fortunately, they are extremely rare. The most famous ones happened at Texas City (1947), Flixborough (1974), Seveso (1976), Pemex (1984) and Bhopal (1984). Some of these are always in the minds of the people even though the loss of life was small. No one died at Seveso, and only 28 workers at Flixborough. The worst accident of all was Bhopal, where up to 3,000 were killed. The Texas City explosion of fertilizer killed 552. The Pemex fire at a storage plant for natural gas in the suburbs of Mexico City took 542 lives, just a month before the unfortunate event at Bhopal. Some experts have discussed these accidents and used each accident to illustrate a particular danger. Thus the Texas City explosion was caused by tons of ammonium nitrate (硝酸铵), which is safe unless stored in great quantity. The Flixborough fireball was the fault of management, which took risks to keep production going during essential repairs. The Seveso accident shows what happens if the local authorities lack knowledge of the danger on their doorstep. When the poisonous gas drifted over the town, local leaders were incapable of taking effective action. The Pemex fire was made worse by an overloaded site in an overcrowded suburb. The fire set off a chain reaction of exploding storage tanks. Yet, by a miracle, the two largest tanks did not explode. Had these caught fire, then 3,000 strong rescue team and fire fighters would all have died.

单选题The scientist and agricultural innovator George Washington Carver aided the economy of the South by developing hundreds of commercial uses for crops such as the peanut.

单选题My relationship with the actors is {{U}}fundamental{{/U}} to my work as a director.

单选题Most sound vibrations arrive at the eardrum by way of the auditory canal.

单选题All dogs are capable of doing harm to human beings. A. damage B. injury C. danger D. wound

单选题I have no alternative but to report him to the local police.