简述弗兰克·劳埃德·赖特的生平。

Passage twoEducating girls quite possibly yields a higher rate of return than any other investment available in the developing world .women’s education may be unusual territory for economists ,but enhancing women’s contribution to development is actually as much an economic as a social issue .and economics ,with its emphasis on incentives ,provides guideposts that point to an explanation for why so many girls are deprived of an education Parents in low-income countries fail to invest in their daughters because they do not expert them to make an economic contribution to he family :girls grow up only to marry into somebody else’s family and bear children .Girls are thus seen as less valuable than boys and kept at home to do housework while their brothers are sent to school-the prophecy becomes self-fulfilling ,trapping women in a vicious circle of neglect. An educated mother ,on the other hand ,has greater earning abilities outside the home and faces an entirely different set of choices. She is likely to have fewer but healthier children and can insist on the development of all her children ,ensuring that her daughters are given a fair chance .The education of her daughters then makes it much more likely that the next generation of girls ,as well as of boys ,will be education and healthy . The vicious circle is thus transformed into a virtuous circle. Few will dispute that education women has great social benefits.But it has enormous economic advantages as well .Most obviously ,there is the direct effect of education on the wages of female workers.Wages rise by 10 to 20 percent for each additional year of schooling. Such big returns are impressive by the standard of other available investments ,but they are just the beginning .Education women also has a significant impact on health practices,including family planning.

The passage mainly discusses ( )

A．unequal treatment of boys and girls in developing countries

B．the potential earning power of well –educated women

C．the major contributions of educated women to society

D．the economic and social benefits of educating women

新华网北京2009年２月26日电，近日，中 * * 组织部正式开通“12380”举报网站，主要受理反映县处级以上领导班子和领导干部违反《党政领导干部选拔任用工作条例》选人用人问题的举报。这样做[ ]

①保证了公民积极参与政治生活，依法享有监督权 

②有利于国家机关加强廉政建设，督促国家机关工作人员严格依法办事 

③能够完全杜绝腐败现象 

④有利于促进国家机关提高决策水平和办事效率

A、①②③ 

B、①②④ 

C、①②③ 

D、②③④

变压器的结构有心式和壳式，其中心式变压器的特点是（）。

A.铁心包着绕组

B.绕组包着铁心

C.一、二次绕组在同一铁心柱上

D.以上均不对

以下关于电力改革，说法准确的是（）。

A.加快建设全国统一电力市场是深化电力改革的重点

B.健全*市场规则和电价机制是电力市场发挥作用的关键

C.售电侧改革是深化电力改革的着力点

D.积极发展混合所有制是深化改革的重要内容

施工现场一般场所架空线的最大弧垂处与地面的最小垂直距离为( )m。

A．4

B．4.5

C．5

D．5.5