【名词&注释】
抽象名词(abstract nouns)、市场需求(market demand)、经济结构(economic structure)、区域经济协调发展(harmonious development of regional econ
...)、社会生产(social production)、国内外、总成本(total cost)、低效益(low benefit)、凝血酶原复合物(prothrombin complex concentrate)、依靠科技进步(rely on scientific advancement)
[多选题]调整经济结构的总原则是：
A. 以市场为导向，使社会生产适应国内外市场需求的变化
B. 依靠科技进步(rely on scientific advancement)，促进产业结构优化
C. 发展各地优势，推动区域经济协调发展
D. 转变经济增长方式，改变高投入、低产出，高消耗、低效益(low benefit)的状况
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举一反三：
[单选题]凝血酶的主要作用是
A. 激活因子Ⅷ
B. 分解纤维蛋白原
C. 加速因子Ⅷ复合物的形成
D. 加速凝血酶原复合物(prothrombin complex concentrate)的形成
E. 使因子Ⅷ的作用加强
[单选题]假如厂商生产的产量从1000单位增加到1002单位，总成本(total cost)从2000美元上升到2020美元，那么它的边际成本等于( )
A. 10美元
B. 20美元
C. 2020美元
D. 2美元
[单选题]We have reached a point ______ a change is needed.
A. where
B. that
C. which
D. when
[单选题]根据下列文章，回答31～35题。In the early 1960s Wilt Chamberlain was one of only three players in the National Basketball Association （NBA） listed at over seven feet. If he had played last season, however, he would have been one of 42. The bodies playing major professional sports have changed dramatically over the years, and managers have been more than willing to adjust team uniforms to fit the growing numbers of bigger, longer frames.
A. The trend in sports, though, may be obscuring an unrecognized reality: Americans have generally stopped growing. Though typically about two inches taller now than 140 years ago, today''s people- especially those born to families who have lived in the U.S. for many generations- apparently reached their limit in the early 1960s. And they aren’t likely to get any taller. In the general population today, at this genetic, environmental level, we''ve pretty much gone as far as we can go, says anthropologist William Cameron Chumlea of Wright State University. In the case of NBA players, their increase in height appears to result from the increasingly common practice of recruiting players from all over the world.
B. Growth, which rarely continues beyond the age of 20, demands calories and nutrients–notably, protein–to feed expanding tissues. At the start of the 20th century, under-nutrition and childhood infections got in the way. But as diet and health improved, children and adolescents have, on average, increased in height by about an inch and a half every 20 years, a pattern known as the secular trend in height. Yet according to the Centers for Disease Control and Prevention, average height- 5′9〞for men, 5′4〞for women- hasn''t really changed since 1960.
C. Genetically speaking, there are advantages to avoiding substantial height. During childbirth, larger babies have more difficulty passing through the birth canal. Moreover, even though humans have been upright for millions of years, our feet and back continue to struggle with bipedal posture and cannot easily withstand repeated strain imposed by oversize limbs. There are some real constraints that are set by the genetic architecture of the individual organism, says anthropologist William Leonard of Northwestern University.
D. Gordon, senior anthropologist at the Army Research Center in Natick, Mass, ensures that 90 percent of the uniforms and workstations fit recruits without alteration. She says that, unlike those for basketball, the length of military uniforms has not changed for some time. And if you need to predict human height in the near future to design a piece of equipment, Gordon says that by and large, you could use today’s data and feel fairly confident.
E. 第 31 题 Wilt Chamberlain is cited as an example to
F. illustrate the change of height of NBA players.
G. show the popularity of NBA players in the U.S……
H. compare different generations of NBA players.
I. assess the achievements of famous NBA players.
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