单选题The poor countries are extremely ______ to international economic fluctuations.

单选题Galena, the chief ore of lead, is a Ubrittle/U, lead—gray mineral with a metallic luster.

单选题In a perfectly free and open market economy, the type of employer—government or private—should have little or no impact on the earnings differentials between women and men. However, if there is discrimination against one sex, it is unlikely that the degree of discrimination by government and private employers will be the same. Differences in the degree of discrimination would result in earnings differentials associated with the type of employer. Given the nature of government and private employers, it seems most likely that discrimination by private employers would be greater. Thus, one would expect that, if women are being discriminated against, government employment would have a positive effect on women"s earnings as compared with their earnings from private employment. The results of a study by Fuchs support this assumption. Fuchs"s results suggest that the earnings of women in an industry composed entirely of government employers would be 14.6 percent greater than the earnings of women in an industry composed exclusively of private employees, other things being equal. In addition, both Fuchs and Sanborn have suggested that the effect of discrimination by consumers on the earnings of self-employed women may be greater than the effect of either government or private employer discrimination on the earnings of women employees. To test this hypothesis, Brown selected a large sample of white male and female workers from the 1970 Census and divided them into three categories, private employees, government employees, and self-employed. (Black workers were excluded from the sample to avoid picking up earnings differentials that were the result of racial disparities.) Brown"s research design controlled for education, labor-force participation, mobility, motivation, and age in order to eliminate these factors as explanations of the study"s results. Brown"s results suggest that men and women are not treated the same by employers and consumers. For men, self-employment is the highest earnings category, with private employment next, and government lowest. For women, this order is reversed. One can infer from Brown"s results that consumers discriminate against self-employed women. In addition, self-employed women may have more difficulty than men in getting good employees and may encounter discrimination from suppliers and from financial institutions. Brown"s results are clearly consistent with Fuch"s argument that discrimination by consumers has a greater impact on the earnings of women than does discrimination by either government or private employers. Also, the fact that women do better working for government than for private employers implies that private employers are discriminating against women. The results do not prove that government does not discriminate against women. They do, however, demonstrate that if government is discriminating against women, its discrimination is not having as much effect on women"s earnings as is discrimination in the private sector.

单选题ARoseforEmily,writtenby____,recountsthestoryofaneccentricspinsterintheSouthofUSA.

单选题Cleaningoutthebasementwasa______job.

单选题[Focus on the pronunciation of "a"] A. reiterate B. considerate C. obstinate D. 1iterate

单选题Which of the following is NOT a frequently discussed design feature? A. Arbitrariness B. Convention C. Duality

单选题__________,we'llcometoseeyouagain.

单选题The chief problem in coping with foreign motorists is not so much remembering that they are different from you, but that they are enormously variable. Cross a frontier without adjusting and you can be in deep trouble. One of the greatest gulfs separating the driving nations is the Atlantic Ocean. More precisely, it is the mental distance between the European and the American motorist, particularly the South American motorist. Compare, for example, an English driver at a set of traffic lights with a Brazilian. Very rarely will an Englishman try to anticipate the green light by moving off prematurely. You will find the occasional sharpie who watches for the amber to come up on the adjacent set of lights. However, he will not go until he receives the lawful signal. Brazilians view the thing quite differently. If, in fact, they see traffic lights at all, they regard them as a kind of roadside decoration. The natives of North America are much more disciplined. They demonstrate this in their addiction to driving in one lane and sticking to it—even if it means settling behind some great truck for many miles. To prevent other drivers from falling into reckless ways, American motorists try always to stay close behind the vehicle in front which can make it impossible, when all the vehicles are moving at about 55 mph, to make a real lane change. European visitors are constantly falling into this trap. They return to the Old World still flapping their arms in frustration because while driving in the State in their car they kept failing to get off the highway when they wanted to and were swept along to the next city. However, one nation above all others lives scrupulously by its traffic regulations—the Swiss. In Switzerland, if you were simply to anticipate a traffic light, the chances are that the motorist behind you would take your number and report you to the police. What is more, the police would visit you; and you would be convicted. The Swiss take their rules of the road so seriously that a diver can be ordered to appear in court and charged for speeding on hearsay alone, and very likely found guilty. There are slight regional variations among the French, German and Italian speaking areas, but it is generally safe to assume that any car bearing a CH sticker will be driven with a high degree of discipline.

单选题The following questions present a sentence, part of which or all of which is underlined. Beneath the sentence, you will find five ways of phrasing the underlined part. The first of these repeats the original; the other four are different. If you think the original is best, choose the first answer; otherwise choose one of the others. These questions test correctness and effectiveness of expression. In choosing your answer, follow the requirements of standard written English; that is, pay attention to grammar, choice of words, and sentence construction. Choose the answer that produces the most effective sentence; this answer should be clear and exact, without awkwardness, ambiguity, redundancy, or grammatical error.

单选题Immigration from countries and cultures that are ______ with the cultural core of this nation has been generally prohibited. A. interior B. invisible C. incompatible D. integral

单选题Hedidn’tseemtomind_____________TVwhilehewastryingtostudy

单选题The study of physical properties of the sounds produced in speech is closely connected with ______. A. articulatory phonetics B. acoustic phonetics C. auditory phonetics

单选题To summarize Grice's ideas in the light of other linguists' elaborations, characteristics of irnplicature includes ______. A. calculability B. cancellability C. non-detachability D. conventionality

单选题If a three-digit number is selected at random from the integers 100 to 999, inclusive, what is the probability that the first digit and the last digit of the integer will both be exactly two less than the middle digit? A. 1:900 B. 7:900 C. 9:1,000 D. 1:100 E. 7:100

单选题derelict

单选题For most of the 20th century, the solution to the mystery of the original Americans—where did they come from when, and how? —seemed as clear as the geography of the Bering Strait, the climate of the last ice age, and the ubiquity of finely wrought stone hunting weapons known as Clovis points. According to the ruling theory, bands of big-game hunters trekked out of Siberia sometime before 11,500 years ago. They crossed into Alaska when the floor of the Bering Strait, drained dry by the accumulation of water in a frozen world"s massive glaciers, was a land bridge between continents. And found themselves in a trackless continent, the New World when it was truly new. The hunters, so the story went, moved south through a corridor between glaciers and soon flourished on the Great Plains and in the Southwest of what is now he United States, their presence widely marked by distinctive stone projectile points first discovered near the town of Clovis, New Mexico. In less than 1,000 years, these Clovis people and their distinctive stone points made it all the way to the tip of South America. They were presumably the founding population of today"s American Indians. Now a growing body of intriguing evidence is telling a much different story. From Alaska to Brazil and southern Chile, artifacts and skeletons are forcing archaeologists to abandon Clovis orthodoxy and come to arms with a more complex picture of earliest American settlement. People may have arrived thousands to tens of thousands of years sooner, in many waves of migration and by a number of routes. Their ancestry may not have been only Asian. Some of the migrations may have originated in Australia or Europe.

单选题They had been dating for three years, but even though she pledged her allegiance, his ______ made him suspect her veracity.

单选题The opportunity to explore and play and the encouragement to do so can ______ the performance of many children.

单选题The need for financial provision not only to producers but also to consumers