Excel中，单元格是组成工作表的最小单位。

The effect of the baby boom on the schools helped to make possible a shift in thinking about the role of public education in the 1920’s. In the 1920’s, but especially (1) the Depression of the 1930’s, the United States experienced a (2) birth rate. Then with the prosperity (3) on by the Second World War and the economic boom that followed it, young people married and (4) households earlier and began to (5) larger families than had their (6) during the Depression. Birth rates rose to 102 per thousand in 1946, 106.2 in 1950, and 118 in 1955. (7) economics was probably the most important (8) , it is not the only explanation for the baby boom. The increased value placed (9) the idea of the family also helps to (10) this rise in birth rates. The baby boomers began streaming (11) the first grade by the mid-1940’s and became a (12) by 1950. The public school system suddenly found itself (13) The wartime economy meant that few new schools were buih between 1940 and 1945. (14) , large numbers of teachers left their profession during that period for better-paying jobs elsewhere.

(15) , in the 1950’s, the baby boom hit an antiquated and inadequate school system. Consequently, the custodial rhetoric of the 1930’s no longer made (16) ; keeping youths ages sixteen and older out of the labor market by keeping them in school could no longer be a high (17) for an institution unable to find space and staff to teach younger children. With the baby boom, the focus of educators (18) turned toward the lower grades and back to basic academic skills and (19) . The system no longer had much (20) in offering nontraditional, new, and extra services to older youths.

8().

A. tenant

B. determinant

C. lubricant

D. repentant

余额宝、微信理财通等互联网金融产品出现后，由于其具有投资门槛低、便利化和收益较高等特点，商业银行的许多存款被悄然“搬家”。这说明互联网金融的发展

①加剧了金融行业的竞争　     ②降低了投资者的投资风险

③拓宽了居民投资理财的渠道　 ④提高了劳动报酬在初次分配中的比重

A．①②

B．③④

C．②④

D．①③

GB/T18905-2002《软件工程产品评价》提供了软件产品评价的过程，其中GB/T18905-2002《软件工程产品评价》第五部分评价者用的过程供（）。

A．计划获取或复用某个已有的软件产品的组织予以使用

B．对软件产品执行独立评估的评价者使用

C．计划开发新产品或增强现有的产品，以及打算利用他们自己的技术人员进行产品评价的组织使用

D．编制评价模块的文档提供指南

阅读下面一首诗，完成问题。

1．请从炼字角度说说“采菊东篱下，悠然见南山”妙在何处。

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2．“此中有真意，欲辨已忘言”中的“真意”指的是仆么？

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三相笼型异步电动机直接启动时为什么启动电流很大？启动电流过大有何不良影响？