注意：江苏省中国科学院植物研究所2020考研成绩查询入口及查询方式【2月20日】

尿路梗阻患者行CT检查的价值在于

A.可以清楚地显示肾脏大小、轮廓，肾结石、肾积水、肾实质病变及肾实质剩余状况
B.能鉴别肾囊肿或肾积水
C.可以辨认尿路以外引起的尿路梗阻病变
D.行断层扫描的同时做强化造影，可了解肾脏的功能状态

外伤引起肺泡及细支气管破裂可发生

A.代偿性肺气肿
B.间质性肺气肿
C.腺泡中央型肺气肿
D.全腺泡型肺气肿

嘧啶环中的两个氮原子分别来自

A.谷氨酰胺和天冬氨酸
B.谷氨酰胺和氨
C.谷氨酰胺和天冬酰胺
D.谷氨酰胺和氨基甲酰磷酸

Text 3 The relationship between formal education and economic growth in poor countries is widely misunderstood by economists and politicians alike.Progress in both area is undoubtedly necessary for the social,political and intellectual development of these and all other societies;however,the conventional view that education should be one of the very highest priorities for promoting rapid economic development in poor countries is wrong.We are fortunate that is it,because building new educational systems there and putting enough people through them to improve economic performance would require two or three generations.The findings of a research institution have consistently shown that workers in all countries can be trained on the job to achieve radically higher productivity and,as a result,radically higher standards of living.Ironically,the first evidence for this idea appeared in the United States.Not long ago,with the country entering a recessing and Japan at its pre-bubble peak.The U.S.workforce was derided as poorly educated and one of the primary cause of the poor U.S.economic performance.Japan was,and remains,the global leader in automotive-assembly productivity.Yet the research revealed that the U.S.factories of Honda,Nissan,and Toyota achieved about 95 percent of the productivity of their Japanese counterparts--a result of the training that U.S.workers received on the job.More recently,while examining housing construction,the researchers discovered that illiterate,non-English-speaking Mexican workers in Houston,Texas,consistently met best-practice labor productivity standards despite the complexity of the building industry's work.What is the real relationship between education and economic development?We have to suspect that continuing economic growth promotes the development of education even when governments don't force it.After all,that's how education got started.When our ancestors were hunters and gatherers 10,000 years ago,they didn't have time to wonder much about anything besides finding food.Only when humanity began to get its food in a more productive way was there time for other things.As education improved,humanity's productivity potential increased as well.When the competitive environment pushed our ancestors to achieve that potential,they could in turn afford more education.This increasingly high level of education is probably a necessary,but not a sufficient,condition for the complex political systems required by advanced economic performance.Thus poor countries might not be able to escape their poverty traps without political changes that may be possible only with broader formal education.A lack of formal education,however,doesn't constrain the ability of the developing world's workforce to substantially improve productivity for the foreseeable future.On the contrary,constraints on improving productivity explain why education isn't developing more quickly there than it is.31.The author holds in paragraph 1 that the important of education in poor countries___________.

A.is subject groundless doubts
B.has fallen victim of bias
C.is conventional downgraded
D.has been overestimated