题目内容

Until recently most historians spoke very critically of the Industrial Revolution. They ______ that in the long run industrialization greatly raised the standard of living for the _______ man. But they insisted that its ______ results during the period from 1750 to 1850 were widespread poverty and misery for the _______of the English population. _______ contrast, they saw in the preceding hundred years from 1650-1750, when England was still a _______ agricultural country, a period of great abundance and prosperity. This view, _____ , is generally thought to be wrong. Specialists _______ history and economics, have ______ two things: that the period from 1650 to 1750 was _______ by great poverty, and that industrialization certainly did not worsen and may have actually improved the conditions for the majority of the populace (平民).

A. noted
B. impressed
C. labeled
D. marked

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浮点数的一般表示形式是N=2E×F,其中E是阶码,F是尾数。以下关于浮点表示的叙述中错误的是(3),两个浮点数进行相加运算,应首先(4)。 (3)处填()。

A. 阶码的长度决定浮点表示的范围,尾数的长度决定浮点表示的精度
B. 工业标准 IEEE754 浮点数格式中阶码采用移码、尾数采用原码表示
C. 规格化指的是阶码采用移码、尾数采用补码
D. 规格化表示要求交尾数的绝对值限定在区间[0.5,1)

从物流业务分析中,可以看出在物流业务中的包装业属于低投资、低成本、高收入的行业。

A. 对
B. 错

设有员工实体 Emp(员工号,姓名,姓别,年龄,出生年月,联系方式,部门号),其中“联系方式”要求记录该员工的手机号码和办公室电话,部门号要求对照别一部门实体 Dept的主码“部门号”。Emp实体中存在派生属性和多值属性:(54):对属性部门号应该进行( 55)约束;可以通过命令(56)修改表中的数据。 (56)处填()。

A. INSERT
B. DELETE
C. UPDATE
D. MODIFY

Questions 53-56 When did sport begin If sport is, in essence, play, the claim might be made that sprot is much older than humankind for, as we all have observed, the beasts play. Dogs and cats wrestle and play ball games. Fished and birds dance. The apes have simple, pleasurable games. Frolicking infants, school children playing tag, and adult arm wrestlers are demonstrating strong, trans-generational and trans-species bonds with the universe of animals past present and future. Young animals, particularly, tumble, chase, run wrestle, mock, imitate, and laugh( or so it seems) to the point of delighted exhaust. Their play, and ours, appears to serve no other purpose than to give pleasure to the players, and apparently to remove us temporarily form the anguish of life in earnest. Some philosophers have claimed that our playfulness is the most noble part of our basic nature. In their generous conception, play harmlessly and experimentally permits us to put our creative forces, fantasy, and imagination into action. Play is release form the tedious battles against scarcity and decline which are the incessant, and inevitable, tragedies of life. This is a grand conception that excites and provokes. The holders of this view claim that origins of our highest accomplishments-liturgy, literature and law-can be traced to play a impulse which, paradoxically, we see most purely enjoyed by young beasts and children. Our sports, in this rather happy, non-fatalistic view of human nature, are more splendid creations of the non-datable, trans-species play impulse. It seems to the author that young animals play in order to ________

A. gain pleasure
B. learn specific behavior patterns
C. delight their owners
D. exercise their growing muscles

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