( )作为具有特定意义的市场，与“市场”本身的定义一样，包含两层意义，一是指进行资

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.

By saying "... the prophecy becomes self-fulfilling..." (Lines 4-5, Para. 2). the author means that ( ).

A．girls will turn out to be less valuable than boys

B．girls will be capable of realizing their own dreams

C．girls will eventually find their goals in life beyond reach

D．girls will be increasingly discontented with their life at home

一个¹²C原子的质量为akg，一个¹²C¹⁶O₂分子的质量为bkg，若以¹²C¹⁶O₂中的一个氧原子质量的作为相对原子质量标准，则¹²C¹⁶O₂的相对分子质量为 [      ]

A.

B.

C.

D.

正常人体血容量在性别及年龄上存在一定差异，下列正常值的组合正确的是（）。

A.成年男性65ml/kg，成年女性75ml/kg，新生儿85ml/kg

B.成年男性75ml/kg，成年女性65ml/kg，新生儿85ml/kg

C.成年男性85ml/kg，成年女性75ml/kg，新生儿65ml/kg

D.成年男性75ml/kg，成年女性85ml/kg，新生儿65ml/kg

E.成年男性65ml/kg，成年女性85ml/kg，新生儿75ml/kg

装饰具有独特的质感和触感，格调高雅华贵，吸音保温，立体感强的墙面是（）。

A.硬质墙面

B.油漆墙面

C.软墙面

D.涂料墙面

某人用托盘天平称量5.1g（1g以下用游码）药品，称量后发现误将砝码和药品在托盘上的位置颠倒了。请分析该同学实际称得药品的质量为（）。

A.5.3g

B.5.1g

C.4.9g

D.5.2g