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【简答题】
Though the number of the upper class is a mere one third of the population, they make up at least 25 percent of the nation’s wealth. This class has two parts: upper-upper and lower-upper. 1 , the upper-upper class is the “old rich”—families that have been wealthy for several generations—a nobility of 2 and wealth. A few are known across the nation, such as the Rockefellers, and the anderbilts. Most are not 3 to the general public. They have no 4 to the rest of the community, 5 their income from the investment of their inherited wealth. By 6 , the lower-upper class is the “new rich”. 7 they may be wealthier than some of the old rich, the new rich have been 8 to make their money like 9 else beneath their class. 10 their status is generally 11 than that of the old rich, who have not found it necessary to lift a finger to make their money, and who 12 to look down upon the new rich. However its wealth is 13 , the upper class is very rich. They have enough money and leisure time to 14 an interest in the arts and to 15 rare books and paintings. They generally live in exclusive areas, belong to exclusive social clubs, communicate with each other, and marry their own kind, all of which keeps them so 16 from the masses that they have been called the out-of-sight class. More than any other class, they tend to be ## 17## of being members of a class. They also 18 an enormous amount of power and influence here and abroad, as they 19 many top government positions. Their actions 20 (affect) the lives of millions.
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【单选题】钢按冶炼方法可分为转炉钢、平炉钢和()。
A.
电炉钢
B.
镇静钢
C.
中碳钢
D.
沸腾钢
【单选题】按冶炼方法分类,钢可分为()。
A.
合金钢、碳素钢
B.
沸腾钢、镇静钢
C.
转炉钢、平炉钢、电炉钢
【判断题】钢通常按冶炼方法分为转炉钢、平炉钢和电炉钢。
A.
正确
B.
错误
【判断题】论文结论部分集中反映作者的研究成果,表达对研究课题总的观点和主张。
A.
正确
B.
错误
【简答题】根据所听到的内容作答_____. A)He is late for classes too often. B)He has missed too many classes. C)He has failed in the exam.again. D)He is a trouble maker at school.
【单选题】按冶炼方法的不同,钢可分为()。
A.
平炉钢、转炉钢、电炉钢
B.
碳素钢、普通碳素钢和合金钢
C.
沸腾钢、镇静钢和半镇静钢
D.
连铸钢和模铸钢
【简答题】Potassium chloride is often used as a salt bridge because K + and Cl - ions have in aqueous environment.
【单选题】Mr. Brown often (wore) a heavy coat because he was not (used to) (live) in such a (cold climate).
A.
wore
B.
used to
C.
live
D.
cold climate
【多选题】关于碳素钢的叙述,下列说法正确的是:
A.
按质量可分为普通、优质和高级优质三类
B.
按组织可分为F、P、P+Fe3C等三类
C.
按冶炼方法可分为转炉、平炉和电炉等三类
D.
按成分可分为低、中、高碳等三类
【判断题】钢按照冶炼方法可分为平炉钢、转炉钢和电炉钢。
A.
正确
B.
错误
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