考研易错题(2019/3/26) |
第1题:细胞生活的内环境是指
A.体液 B.细胞内液 C.细胞外液 D.组织液 |
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第2题:It is a favorite pastime of older people to lament the defects of the young.Every generation seems to be convinced that in its day, standards were higher, schools were tougher and kids were smarter.But if I.Q. scores are any measure, and even their critics agree they measure something, people are getting smarter. Researchers who study intelligence say scores around the world have been increasing so fast that a high proportion of people regarded as normal at the turn of the century would be considered way below average by today’s tests. Psychologists offer a variety of possible explanations for the increase, including better nutrition, urbanization, more experience with test taking, and smaller families. Some even say that television and video games have made children’s brains more agile.But no explanation is without its critics, and no one can say with certainty what effects, if any, the change is having on how people lead their daily lives. It is all the more mysterious because it seems to be happening in the absence of a simultaneous increase in scores on achievement tests. One explanation for the rise is ruled out: genetics.Because the increase has taken place in a relatively short period of time, it cannot be due to genetic factors. The worldwide pattern of rising scores in industrialized nations was discovered byDr. James R. Flynn, now a professor at the University of Otego, New ZealanD、He began looking into the subject in the 1980’s in an effort to rebutDr.Arthur Jensen, the professor from the UC、Berkeley who argued that even if the environments of blacks and whites were equalized, the 15-point gap in I. Q. scores between the races would only be partly eliminateD、 AsDr. Flynn investigated, he found that I. Q. scores were going up almost everywhere he lookeD、Although the gap remains,Dr. Flynn said the movement in scores suggests that the gap need not be permanent. If blacks in 1995 had the same mean I. Q. that whites had in 1945, he said, it may be that the average black environment of 1995 was equivalent in quality to the average white environment of 1945. "Is that really so implausible "Dr. Flynn askeD、 Meanwhile, the kinds of intelligence that are promoted and respected vary from time to time, saidDr. Patricia Greenfield, a psychology professor at the UCLA、Playing computer games like Tetris promotes very different skills from reading novels. The new skills, she said, are manifested in the worlD、"Flynn will tell you we don’t have more Mozarts andBeethovens,"Dr. Greenfield said, "I say, look at the achievements of science, likeDNA、Or look at all the technological developments of this century. \ The text intends to tell us that______. A、the increase in human intelligence is an unavoidable process B、human intelligence is becoming more predictable C、human intelligence is getting higher in more than one aspect D、I. Q is the key to one’s success |
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第3题:{{B}}Directions{{/B}} You have an appointment next Friday with your supervisor about your thesis but you are unable to keep it bemuse something unexpected has happened: Write a letter to him according to the following outline: 1) express your apology for your inability to keep it; 2) give your reasons for it; 3) suggest other remedies. You should write about i00 words onANSWER SHEET 2.Do not sign your own name at the end of the letter. Use "Li Xin" insteaD、You do not need to write the address. |
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第4题:SaudiArabia, the oil industry’s swing producer, has become its flip-flopper. In February, it persuaded OPEC、to cut its total production quotas by lm barrels per day (bpd), to 23.5m, as a precaution against an oil-price crash this spring. That fear has since been replaced by its opposite. The price of West Texas crude hit $40 last week, its highest since the eve of the first Iraq war, prompting concerns that higher oil prices could sap the vigour ofAmerica’s recovery and compound the frailty ofEurope’s. On Monday May 10th,Ali al-Naimi, SaudiArabia’s energy minister, called on OPEC、to raise quotas, by at least 1. 5m bpd, at its next meeting on June 3r D、 Thus far, the high oil price has been largely a consequence of good things, such as a strengthening world economy, rather than a cause of bad things, such as faster inflation or slower growth.China’s burgeoning economy guzzled about 6m bpd in the first quarter of this year, 15% more than a year ago, according to Goldman Sachs.Demand was also strong in the rest ofAsia, excluding Japan, growing by 5.2% to 8. 1m bp D、As the year progresses, the seasonal rhythms ofAmerica’s drivers will dictate prices, at least of the lighter, sweeter crudes.Americans take to the roads en masse in the summer, and speculators are driving up the oil price now in anticipation of peak demand in a few months’ time. Until recently, the rise in the dollar price of oil was offset outsideAmerica andChina by the fall in the dollar itself.But the currency has regained some ground in recent weeks, and the oil price has continued to rise.Even so, talk of another oil price shock is premature. The price of oil, adjusted for inflation, is only half what it was inDecember 1979, and the United States now uses half as much energy per dollar of output as it did in the early 1970s.But if oil cannot shock the world economy quite as it used to, it can still give it "a good kick", warns Goldman Sachs. If average oil prices for the year come in 10% higher than it forecast, it reckons GDP growth in the Group of Seven (G7) rich nations will be reduced by 0.3%, or $70 billion. TheAmericans are certainly taking the issue seriously. John Snow, their treasury secretary, called OPEC’s February decision "regrettable", and the rise in prices since then "not helpful". Washington pays close heed to the man at the petrol pump, who has seen the average price of a gallon of unleaded petrol rise by 39 cents in the past year.And the Saudis, some mutter, pay close heed to Washington. Besides, the high oil price may have filled Saudi coffers, but it has also affronted Saudi pride. Mr. al-Naimi thinks the high price is due to fears that supply might be disrupted in the future. These fears, he says, are "unwarranted".But the hulking machinery in theArabian desert that keeps oil flowing round the world presents an inviting target to terrorists should they tire of bombing embassies and nightclubs. (ha May 1st, gunmen killed six people in a Saudi office ofABB、Lummus Global, anAmerican oil contractor. Such incidents add to the risk premium factored into the oil price, a premium that the Saudis take as a vote of no confidence in their kingdom and its ability to guarantee the supply of oil in the face of terrorist threats. By "a good kick", Goldman Sachs suggests that ______. A、U.S. currency is exerting a positive influence over oil price B.another oil-price shock is inevitable given its continuing rise C.the rise of oil price could affect world economy negatively D、Goldman Sachs remained optimistic about the situation |
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第5题:实现多道程序系统的最主要硬件支持是什么 |
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