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单项选择题

I ( ) my boss of my arrival in Tokyo.
A.informed
B.reformed
C.formed
D.deformed

A.
A.informed
B.reformed
C.formed
D.deformed
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单项选择题In May 1989, space shuttle 'Atlantis' released in outer space the space probe 'Megal-lan', which is now on her 15-month and one-billion-kilometer flight to Venus. A new phase in space exploration has begun. The planet Venus is only slightly smaller than the earth; it is the only other object in the solar system, in fact, that even comes close to the earths size. Venus has a similar density, so it is probably made of approximately the same stuff, and it has an atmosphere, complete with clouds. It is also the closest planet to the earth, and thus the most similar in distance from the sun. In short, Venus seems to justify its long-held nickname of 'the earths twin'. The surface temperature of Venus reaches some 900 degree F. Added to that is an atmospheric pressure about 90 times the earths. High overhead in the carbon dioxide(CO2)that passes for air is a layer of clouds, perhaps 10 to 20 miles thick, whose little drops consist mostly of sulfuric acid(H2SO4). Water is all but nonexistent. Born with so many fundamental similarities to the earth, how did Venus get to be so radically different? It is not just an academic matter. For all its extremes, Venus is a valuable laboratory for researchers studying the weather and climate of the earth. It has no the earths oceans, so the heat-transport and other mechanisms are greatly simplified. In addition, the planet Venus takes 243 earth-days to turn once on its axis, so incoming heat from the sun is added and distributed at a more leisurely, observable pace. Question: The main idea of this passage is about______.A.problems of space travelB.scientific methods in space explorationC.the importance of Venus to the earthD.conditions on Venus

A.
A.problems
B.scientific
C.the
D.conditions

单项选择题The United States is a country made up of many different races. Usually they are mixed together and cant be told from one another. But many of them still, talk about where their ancestors came from. It is something they are proud of. The original Americans, of course, were the Indians. The so-called white men who then came were mostly from England. But many came from other countries like Germany and France. One problem the United States has always had is discrimination. As new groups came to the United States they found they were discriminated against. First it was the Irish and Italians. Later it was the blacks. Almost every group has been able to finally escape this discrimination. The only immigrants who have not are the blacks. Surprisingly enough the worst discrimination today is shown towards the Indians. One reason the Indians are discriminated against is that they have tried so hard to keep their identity. Of course they are not the only ones who have done so. The Japanese have their Little Tokyo in Los Angeles and the Chinese a Chinatown in New York. The Dutch settlement in Pennsylvania also stays separate from other people. Their towns are like something from the 19th century. They have a different reason from the other groups for staying separately. They live separately for religious reasons rather than keep together in a racial group. Although some groups have kept themselves separate and others have been discriminated against, all groups have helped make the United States a great country. There is no group that has not helped in some way. And there is no group that can say they have done the most to make it a great country. Many people still come from other countries to help the United States grow. A good example is the American project that let a man walk on the moon. It was a scientist from Germany who was most responsible for doing that. It is certain that in the future the United States will still need the help of people from all racial groups to remain a great country. Questions:The average untrained native speaker at University of Minnesota______.A.reads at about 245 w. p. m.B.reads at 600 w. p. m.C.reads at about 300 w. p. m.D.cannot read difficult works in translation

A.
A.reads
B.
B.reads
C.
C.reads
D.
D.cannot