Even though there are strict rules______ the use of chemicals in food, some food producers disregard them intentionally in order to gain more profits.

A . Point-to-point B . Broadcast multicast C . Nonbroadcast multicast D . Backbone area 0 E . Virtual Link

A . to B . by C . in D . of

A . insisted on B . insisted at C . insisted that D . insisted i

A . insisted on B . insisted at C . insisted that D . insisted i

A.对 B.错

The first is the success of antivivisection campaigners in lampooning animal research as outdated, intentionally cruel, "bad" science, which achieves nothing. All drugs and procedures developed with the help of animal tests are said to be dangerous. The occasional failure of animal testing to identify a dangerous drug is developed as an argument for abandoning safety tests involving animals altogether--with no mention of the terrible human suffering that this would cause. They say that "alternative" methods already exist for all animal experiments, but the fact is that the law specifically forbids animal use if there is any alternative. The second reason is that scientists and doctors have failed to oppose such misrepresentation. In the early 1990s, animal rights campaigning in the US was met with much more forthright defense, not only by the major scientific societies, funding agencies and medical organizations, but also by the US government. To be positive, there are many encouraging features of the New Scientist poll. Interestingly, the public seems to employ the same kind of utilitarian philosophy that underpins the law in Britain--weighing potential benefits against the species involved (thus, monkeys are more "valuable" than mice) and the likelihood of suffering. Clearly, people in Britain do not recognize the essential link between animal research and testing and the medical treatments that they receive. Only 18 percent of those who had taken (or had a close family member who had taken a drug prescribed for a serious illness realized that the drug had been tested on animals, as all drugs are. Obviously, a large majority of those surveyed believe that they can happily benefit from medical treatment without taking advantage of animal research. No wonder so many people oppose it when asked the straight yes/no question. The views of the public must be respected. But this poll tells us that, while they are open to persuasion, their reaction is based on misunderstanding. The responsibility for providing honest evidence for the public lies not just with those who use animals in their research, but with other scientists who depend on that work. It lies with the doctors who benefit from animal research, with the pharmaceuticals and biotech industries, and the medical charities and funding age, les whose work would be crippled without it. But most of all, responsibility rests with government, which should cultivate serious and transparent debate between those of different opinion, and provide the public--especially young people--with the honest evidence they need and deserve. In the first sentence of Paragraph 3, "such misrepresentation" refers to ______. A．the idea that other methods can be substituted for animal research B．the claim that animal experiment is intentionally cruel C．the belief that all drugs developed with animal tests are dangerous D．the fact that scientists and medical organizations support animal experimentation

A、hasty generalization B、post hoc C、guilt by association D、oversimplification

2 Those numbers between 1 and 13 were in particular to have a powerful influence over the affairs of men. 3 For example, it is commonly said that luck, good or bad, comes in threes; if an accident happens, two more of the same kind may be expected soon afterwards. The arrival of a letter will be followed by two others within a certain period. 4 Another belief involving the number three has it that it is unlucky to light three cigarettes from the one match. If this happens, the bad luck that goes with the deed falls upon the person whose cigarette was the last to be lit. The ill-omen linked to the lighting of three things from one match or candle goes back to at least the 17th century and probably earlier. It was believed that three candles alight at the same time would be sure to bring bad luck; one, two, or four, were permissible, but never just three. 5 Seven was another significant number, usually regarded as a bringer of good luck. The ancient astrologers believed that the universe was governed by seven planets; students of Shakespeare will recall that the life of man was divided into seven ages. Seven horseshoes nailed to a house will protect it from all evil. 6 Nine is usually thought of as a lucky number because it is the product of three times three. It was much used by the Anglo Saxons in their charms for healing. 7 Another belief was that great changes occurred every 7th and 9th of a man's life.Consequently, the age of 63 (the product of nine and seven) was thought to be a very perilous time for him. If he survived his 63rd year he might hope to live to a ripe old age. 8 Thirteen, as we well know, is regarded with great awe and fear. 9 The common belief is that this derives from the fact that there were 13 people at Christ's Last Supper. This being the eve of his betrayal, it is not difficult to understand the significance given to the number by the early Christians. 10 In more modern times 13 is an especially unlucky number of a dinner party, for example. Hotels will avoid numbering a floor the 13th; the progression is from 12 to 14, and no room is given the number 13. Many home owners will use 12 1/2 instead of 13 as their house number. 11 Yet oddly enough, to be born on the 13th of the month is not regarded with any fear at all, which just shows how irrational we are in our superstitious beliefs. According to the passage, which of the following groups of numbers will certainly bring good luck to people？ A．3 and 7. B．3 and 9. C．7 and 9. D．3 and 13.

A) let out B) let alone C) let go of D) hold fast

Most people tend to think of electric cars as a new 6 ____, but they have been around for a long time. In the 7_____ 19th and early 20th centuries electric cars were common because the technology for petrol engines was not very advanced.But 8____ the petrol engine became easier to make and more powerful, this type of engines became the most 9 ____.Interest in electric cars was high in the l970s and 1980s because 10____ became very expensive.Recently, electric cars have again become well-liked because people want cars that pollute 11_____. Electric cars are better than petrol cars 12______ several ways. The biggest benefit is reduced pollution.In areas 13_____ there is a high percentage of electric cars, pollution is not that serious. The second benefit of electric cars is a 14 _____in the dependence on foreign oil.Several countries don’t want to 15 _____on oil from other countries. Since electric cars can run on electricity from coal or nuclear power stations, there is less need to import oil. (15分) (1)第1题最佳答案应选()(1分) A. But B. Nor C. Or D. And (2)第2题最佳答案应选()(1分) A. traditional B. common C. same D. special (3)第3题最佳答案应选()(1分) A. summary B. detail C. time D. addition (4)第4题最佳答案应选()(1分) A. all B. both C. either D. neither (5)第5题最佳答案应选()(1分) A. described B. regarded C. called D. known (6)第6题最佳答案应选()(1分) A. invention B. influence C. instrument D. intention (7)第7题最佳答案应选()(1分) A. last B. beginning C. recent D. late (8)第8题最佳答案应选()(1分) A. unless B. after C. before D. until (9)第9题最佳答案应选()(1分) A. popular B. comfortable C. difficult D. dangerous (10)第10题最佳答案应选()(1分) A. motors B. power C. cars D. oil (11)第11题最佳答案应选()(1分) A. much B. more C. less D. few (12)第12题最佳答案应选()(1分) A. by B. in C. at D. on (13)第13题最佳答案应选()(1分) A. when B. where C. what D. which (14)第14题最佳答案应选()(1分) A. start B. need C. reduction D. rise (15)第15题最佳答案应选()(1分) A. put B. hold C. rely D. keep

A．vacation B．profession C．work D．variety

______

A．A.manipulated B．B.manipulating C．C.considering D．D.managing

<img src='https://img2.soutiyun.com/shangxueba/ask/17136001-17139000/17136038/f28d8f90a50d72312b6b87c172d89320.jpg' /> A.SELECT e.last_name, d.department_id, d.department_name, l.city FROM departments d RIGHT OUTER JOIN employees e ON d.department_id = e.department_id RIGHT OUTER JOIN locations l ON d.location_id = l.location_id; B.SELECT e.last_name, d.department_id, d.department_name, l.city FROM departments d FULL OUTER JOIN employees e ON d.department_id = e.department_id FULL OUTER JOIN locations l ON d.location_id = l.location_id; C.SELECT e.last_name, d.department_id, d.department_name, l.city FROM departments d LEFT OUTER JOIN employees e ON d.department_id = e.department_id LEFT OUTER JOIN locations l ON d.location_id = l.location_id; D.SELECT last_name, department_id, department_name, city FROM departments d NATURAL JOIN employees e NATURAL JOIN locations l;