单选题It can be inferred from the passage that traditional skin cancer theory says _________.

单选题A.Herson'shealth.B.Herson'sstudies.C.Herson'spoorgrades.D.Herson'scompetenceforthejob.

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单选题{{B}}Passage Two{{/B}} As in the field of space travel, so in undersea exploration new technologies continue to appear. They share a number of similarities with each other—as well as some important differences. Manned submersibles.(潜水器), like spaceships, must maintain living conditions in an unnatural environment. But while a spaceship must simply be sealed against the vacuum of space, a submersible must be able to bear extreme pressure if it is not to break up in deep water. In exploring space, unmanned vehicles were employed before astronauts. In undersea exploration, on the other haled, men paved (铺路) the way, and only recently have unmanned remote-operated vehicles (ROVs) been put to use. One reason for this is that communicating with vehicles in orbit is much easier than talking to those underwater. A vacuum is an ideal medium for radio communications, but underwater communications are limited to much slower sound waves. Thus, most undersea vehicles—particularly ROVs—operate. at the end of long process. For a similar reason, knowing where you are undersea is much more difficult than in space. A spaceship's position can be located by following its radio signal, or by using telescopes and radar. For an undersea vehicle, however, a special network of sonar (声纳) devices most be laid out in advance on the ocean floor in the area of a dive to locate the vehicle's position. Though undersea exploration is more challenging than outer space in a number of respects, it has a distinct advantage: Going to the ocean doesn't require the power necessary to escape Earth's gravity. Thus, it remains far less expensive.

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单选题According to the text, what will be found in some children's Happy Meal instead of French fries?

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单选题Unlike downturns past,European nations have kept unemployment figures low relative to the U.S. this time around because Europe's labor markets have (67) to depend less on allowances than government schemes to put them back to work quickly. What's more, (68) focusing solely on jumpstarting their economies (69) stimulus(刺激), as the U.S. has, Northern Europe has thrown its (70) at keeping people at work--by any means (71) . In the countries of northern Europe, that has (72) large and successful retraining schemes to get laid-off workers back into jobs quickly. (73) in nations like Germany, jobs have also been (74) by cutting hours. Rather than laying off workers, a number of European companies have chosen to cut (75) schedules by a third or more as part of larger government schemes to (76) mass layoffs. Companies save money on salaries (77) the government picks up the cost of the pay cuts, including payroll(工资总额) taxes. It's successful, but it (78) to the national debt and also has the (79) to twist European labor markets. What's more, economists note, European unemployment (80) tend to lag behind those of the U.S.-- meaning that while American unemployment will probably (81) this year, the big European economies will (82) numbers continue to rise into the years ahead. All these emphasize the fact (83) while Northern Europe has handled the crisis (84) well up to now, the future is (85) bright. Indeed, economists say that Europe's usual slower-growth, higher-unemployment trend line will (86) in the years ahead.

单选题 Passage Two Questions 30 to 32 are based on the passage you have just heard.

单选题The Bangladeshi women continued to visit their doctors because ______.

单选题Questions 9 to 12 are based on the conversation you have just heard.

单选题Protests at the use of animals in research have taken a new and fearful character in Britain with attempted murder of two British scientists by the terrorist technique of the pre-planted car-bomb. The research community will rightly be alarmed at these developments, which have two objectives: to arouse public attention and to frighten people working in research with animals. The first need is that everything should be done to identify those responsible for the crimes and to put them on trial. The Defense Research Society has taken the practical step of offering a reward of 10,000 pounds for information leading to those responsible, but past experience is not encouraging. People are unlikely to be tempted by such offers. The professional police will similarly be confronted by the usual problem of finding a needle in a haystack. That is why the intellectual community in Britain and elsewhere must act more actively in its own defense. There are several steps that can be taken, of which the chief one is to demand of all the organizations that exist with the declared objectives of safeguarding the interests of animals that they should declare dearly where they stand on violence toward people. And it will not be enough for the chairmen and chairwomen of these organizations to make placatory (安抚的) statements on behalf of all their members. These people should also undertake that it will be a test of continuing membership in their organizations that members and would-be members should declare that they will take no part in acts of violence against human beings. Even such undertakings would be fully effective: people, after all, can lie. But at least they would distinguish the organizations entitled to a continuing voice in the dialogue with the research community about the rights of animals in research from the organizations that deserve no say.

单选题The president________NATO of paying too little attention to the ethnic tensions.

单选题Fed up with the terrible performances of the team he'd been watching for years, he __________ his support to their rivals.

单选题Critics of Al would probably agree with the statement that ______.