单选题Whydoesthespeakersaythatradiationissimilartoradiowaves?A.Becausebothofthemcanbedetectedbyhumansenses.B.Becausebothofthemcanbesensedbyaradioreceiver.C.Becausebothofthemareharmful.D.Becausebothofthemcanonlybedetectedbydevices.

单选题Which one of the following statements about cultural code is TRUE?

单选题Opinion polls are now beginning to show an unwilling general agreement that, whoever is to blame and whatever happens from now on, high unemployment is probably here to stay. This means we shall have to find ways of sharing the available employment more widely. But we need to go further. We must ask some fundamental questions about the future of work. Should we continue to treat employment as the norm? Should we not create conditions in which many of us can work for ourselves, rather than for an employer? Should we not aim to revive the household and the neighbourhood, as well as the factory and the office, as centres of production and work? The industrial age has been the only period of human history in which most people"s work has taken the form of jobs. The industrial age may now be coming to an end, and some of the changes in work patterns which it brought about may have to be reversed. This seems a discouraging thought. Bat, in fact, it could offer the prospect of a better future for work: Universal employment, as its history shows, has not meant economic freedom. Employment became widespread when the enclosures of the 17th and 18th centuries made many people dependent on paid work by depriving them of the use of the land, and thus of the means to provide a living for themselves. Then the factory system destroyed the cottage industries and removed work from people"s homes. Later, as transport improved, first by rail and then by road, people travelled longer distances to their places of employment until, eventually, many people"s work lost all connection with their home lives and places in which they lived. Meanwhile, employment put women at a disadvantage. It became customary for the husband to go out paid employment, leaving the unpaid work of the home and family to his wife. All this may now have to change. The time has certainly come to switch some effort and resources away from the impractical goal of creating jobs for all, to the urgent practical task of helping many people to manage without full-time jobs.

单选题The reason why Arizona is short of stewards is that______.

单选题BPassage 1/B 　　If the United Nations Security Council rushes to send inspectors back into Iraq on Baghdad's promise of cooperation and under the old rules, it will be playing a chump's game, one Saddam Hussein has won countless times. Once in a while, the inspectors will face delay, obstruction, bugging and a succession of manufactured crises. These will prompt familiar fights among the major powers over whether a particular Iraqi act constitutes a major violation. Soon the United Sates will declare the whole exercise a failure and invade Iraq.　　That is an outcome worth avoiding. For the United States, the costs of such a war include the death of soldiers, economic losses caused by the effect of soaring oil prices on a fragile stock market, the need to post tens of thousands of troops in Iraq for many years, lingering resentment among allies whose cooperation we need and the near certainty of creating legions of new terrorists who hate America. For the United Nations, the result would be a terrible defeat, an admission of weakness and its inability to impose its writ on a villain. For the world as a whole, the costs will include the deaths of innocent Iraqis, increased repression in Arab states coping with domestic political anger and possibly chaos in the region.　　That is the short list. The worst-case outcomes include an attack with biological weapons on Israel and on American troops at their weakest moment-as they assemble in the region-by, a man with nothing to lose. What would be the likely response by both countries, and with what long-term consequence?　　There is a credible alternative to these scenarios that is worth trying. It is a new system of coercive inspection to replace the game of cat and mouse that Mr. Hussein has perfected. The Security Council would create a powerful, American-led multinational military force, the inspection implementation force, that would enable the inspection teams to carry out "comply or else" inspections. If Iraq refused to accept, or obstructed the inspections, regime change (preferably under a United Nations mandate) Would be back on the table.

单选题Whatisthemajorsourceofevaporationofwaterfromtheoceansandlakes?A.Themoon.B.Thesun.C.Thestar.D.Theearth.

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单选题The passage mainly discusses ______.

单选题When men grow older, their hair often begins to fall out. When hair begins to fall out (41) old age, it is impossible to make it (42) again. I know a man who found (43) his hair was beginning to fail out on his fortieth birthday. He bought some ointment(药膏) and used it on his head. (44) ointment was very expensive. It (45) ＄50 for a small can ! He used the ointment on his head (46) a day. Every day he (47) into his mirror(镜子) to see (48) is hair was growing again, but the ointment was (49) good. Every day more and more hair fell out and (50) there was no hair left on his head.

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