折现率应高于（）A、折旧率 B、折扣率 C、无风险利率 D、成新率

Questions 6-10 are based on Passage Two: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 expect them to make an economic contribution to the 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 educated and healthy. The vicious circle is thus transformed into a virtuous circle.Few will dispute that educating 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 lo t0 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. Educating women also has a significant impact on health practices, including family planning.

The author believes that a vicious circle can turn into a virtuous circle when ( ).

A．women care more about education

B．girls can gain equal access to education

C．a family has fewer but healthier children

D．parents can afford their daughters’ education

血浆葡萄糖测定的参考方法是（）

A.己糖激酶法

B.葡萄糖脱氢酶法

C.邻甲苯胺法

D.GOD－POD法

E.GOS－OE法

七年战争（1756-1763）

许多心理治疗方法中强调成功治疗的最关键因素是（）

A.良好医患关系

B.保密性原则

C.针对性原则

D.灵活性原则

E.完善治疗计划

乙炔瓶只要竖放，丙酮就不会流出，瓶内的乙炔气体应该用尽，有利于再次充装。（）