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下图是受到寒冷刺激时，机体发生的某些调节和代谢过程示意图。请据图回答有关生命调节和代谢的问题。图中甲、乙、丙表示三种具有内分泌功能的器官，a、b、c、d、e表示具有特定功能的化学物质。请据图回答：

B图显示的是（）个细胞的部分结构。⑥一般是神经元的（）部分的细胞膜。

答案

参考答案：2；胞体或树突

解析：B图结构表示突触，突触前膜和突触后膜分别表示两个神经元，突触后膜是下一个神经元的胞体膜或树突膜。

填空题

For more than two centuries, American’s colleges and universities have been the backbone of the country’s progress. They have educated the technical, managerial, (1) and provided generation after generation of national leaders. Today educators from around the globe are turning to U. S. institutions of higher learning (2) . They are apt to find many reasons for the excellence of American universities, but (3) stand out as watersheds:
Education (4) : In 1862 Congress enacted the Land-Grant College Act, which essentially extended the opportunity of higher education (5) , including such disenfranchised groups as women and minorities. Each state was permitted to sell large tracts of (6) and use the proceeds to endow at least one public college.
(7) : Over the years, the decentralization and diversity of the America’s colleges and universities have promoted competition for students and resources. Competitive pressure first arose (8) . The academy’s impact really grew after World War II, when (9) commissioned by President Roosevelt argued that it was the federal government’s responsibility to (10) for basic research. Instead of being centralized in government laboratories, scientific research (11) in American universities and generated increasing investment. It also gave graduate students research opportunities and helped (12) far and wide, to the benefit of industry, medicine and society as a whole.
(13) : The end of the World War II saw passage of the Servicemen’s Readjustment Act of 1944. The law, which provided for (14) for returning veterans, made an already democratic higher-education system accessible in ways that were (15) in Europe, opening the doors of the best universities to men and women who had (16) of going to college.
(17) : The creation of federal loan guarantees and subsidy programs, as well as outright grants for college students brought (18) to higher education and further helped to democratize access. Since its founding (19) , the Federal Family Education Loan Program has funded more than 74 million student loans worth more than (20) .
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单项选择题

根据1992年统计，社会服务和个人服务领域的就业比重在美国为22%，日本为22%，德国为28%，加拿大为31%，巴西为35%，而我国仅为5%，差距很大。这一领域为国有企业解决富余劳动力问题提供了广阔的空间。
以下哪项最能反映上文的主要观点？（）

A．第三产业是吸纳劳动力的较多的领域。

B．国有企业认真解决富余劳动力的问题。

C．解决国营企业富余劳动力是深化改革的关键。

D．加快发展第三产业，为国有企业解决富余劳动力提供条件。

E．发展第三产业与国有企业关系不大。
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