基质促进皮肤水合作用的能力为 A．油脂性基质＞O/W型基质＞W/O型基质＞水溶性基质

△ABC中三顶点对应的复数分别是z₁，z₂，z₃，若复数z满足|z-z₁|=|z-z₂|=|z-z₃|，则z所对应的点是△ABC的（　　）

A．垂心

B．外心

C．内心

D．重心

一圆锥形黄沙，底面直径4m，高1.2m，每立方米黄沙重1.5吨，这堆黄沙重多少吨．

若诊断为子痈，必须下列哪项支持：

A．透光试验阴性

B．触诊睾丸肿大压痛明显

C．血象白细胞增高

D．透光试验阳性

E．血象白细胞正常

在工程施工合同按照合同计价方式和风险分担情况划分的类型中，( )计价方式一般适用于核定合同价格时，工程内容、范围、数量不清楚或难以界定的工程建设项目。

A．固定总价合同

B．固定单价合同

C．可调价格合同

D．成本加酬金合同

Senator Barack Obama likes to joke that the battle for the Democratic presidential nomination has been going on so long, babies have been born, and they’ re already walking and talking. That’s nothing. The battle between the sciences and the humanities has been going on for so long, its early participants have stopped walking and talking, because they’re already dead.

It’s been some 50 years since the physicist-turned-novelist C. P. Snow delivered his famous "Two Cultures" lecture at the University of Cambridge, in which he decried the "gulf of mutual incomprehension", the "hostility and dislike" that divided the world’s "natural scientists", its chemists, engineers, physicists and biologists, from its "literary intellectuals", a group that, by Snow’s reckoning, included pretty much everyone who wasn’t a scientist. His critique set off a frenzy of desperation that continues to this day, particularly’in the United States, as educators, policymakers and other observers lament the Balkanization of knowledge, the scientific illiteracy of the general public and the chronic academic turf wars that are all too easily lampooned.

Yet a few scholars believe that the cultural chasm can be bridged and the sciences and the humanities united into a powerful new discipline that would apply the strengths of both mindsets, the quantitative and qualitative, to a wide array of problems. Among the most ambitious of these exercises in fusion thinking is a program under development at Binghamton University in New York called the New Humanities Initiative.

Jointly conceived by David Sloan Wilson, a professor of biology, and Leslie Heywood, a professor of English, the program is intended to build on some of the themes explored in Dr. Wilson’s evolutionary studies program, which has proved enormously popular with science and nonscience majors alike, and which he describes in the recently published "Evolution for Everyone". In Dr. Wilson’s view, evolutionary biology is a discipline that, to be done right, demands a crossover approach, the capacity to think in narrative and abstract terms simultaneously, so why not use it as a template for emulsifying the two cultures generally "There are more similarities than differences between the humanities and the sciences, and some of the stereotypes have to be altered," Dr. Wilson said, "Darwin, for example, established his entire evolutionary theory on the basis of his observations of natural history, and most of that information was qualitative, not quantitative. "

As he and Dr. Heywood envision the program, courses under the New Humanities rubric would be offered campus-wide, in any number of departments, including history, literature, philosophy, sociology, law and business. The students would be introduced to basic scientific tools like statistics and experimental design and to liberal arts staples like the importance of analyzing specific texts or documents closely, identifying their animating ideas and comparing them with the texts of other immortal minds.

The word "balkanization" (Line 7, Paragraph 2) most probably means（）

A. ignorance

B. split

C. mistake

D. declination