试题与答案

下图中,阴影部分为黑夜,∠α=23°26′,完成: 此时,国际标准时为 A.6

题型:选择题

题目:

下图中,阴影部分为黑夜,∠α=23°26′,完成:

此时,国际标准时为

A.6月22日0时  B.12月22日6时  C.6月22日12时  D.12月22日8时

在α由图示状态缩小为 0°的时段内

A.长江中下游地区出现梅雨  B.东北山区河流进入主汛期

C.华北平原开始播种小麦  D.东部秦岭—淮河以南地区可能出现低温冻害

答案:

B  D

从昏线倾斜可以看出,赤道以北昼短夜长,而且根据条件,此时为白昼最短的一天,即12月22日,赤道上18点日落,图中180度经线为12月22日18点,国际标准时为0度经线所在的地方时,此时为6点。

α由图示状态缩小为 0°的时段内,时间为由12月22日到3月21日时段内,北半球为春季初期,故D对。

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题型:单项选择题


(由单选和多选组成。)

甲公司是一家棉纱生产企业,生产工艺在同等行业中处于中等水平,生产规模较小,但企业市场竞争水平较高,在某地区占有市场份额25%,居于行业先进地位。近几年来,棉纱生产行业市场竞争激烈,虽然公司通过技术改造和加强内部管理大幅度降低成本,通过产品质量监督提升了企业的市场竞争力,但也仅能保住已取得的市场份额,企业发展后劲不足。为谋求企业发展,公司决定扩大纱锭规模。公司有关部门通过对扩大企业规模的风险与获益能力进行深入细致的分析研究后,提交了四种方案及相应损益值如下表。在总经理办公会上,公司决策层、生产与技术部门及市场营销部门在扩大纱锭规模的实施方案上争论激烈,最后在讨论的基础上,总经理确定了方案。
决策方案损益值自然状态销路好销路差
甲方案3500-900
乙方案25001000
丙方案2000-450
丁方案500300
根据以上资料,回答下列问题:

该公司总经理选定的实施扩大纱锭规模方案最优可能是( )。

A.甲方案

B.乙方案

C.丙方案

D.丁方案

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题型:单项选择题


Passage One

Opinion polls are now beginning to show an unwilling general agreement that, whoever is to blame and whatever happens from now on, high unemployment is probably here to stay. This means we shall have to find ways of sharing the available employment more widely.
But we need to go further. We must ask some fundamental questions about the future of work. Should we continue to treat employment as the norm Should we not rather encourage many other ways for self-respecting people to work Should we not create conditions in which many of us can work for ourselves, rather than for an employer Should we not aim to revive the household and the neighborhood, as well as the factory and the office, as centers of production and work
The industrial age has been the only period of human history in which most people’s work has taken the form of jobs. The industrial age may now be coming to an end, and some of the changes in work patterns which it brought may have to be reversed. This seems a discouraging thought. But, in fact, it could offer the prospect of a better future for work. Universal employment, as its history shows, has not meant economic freedom.
Employment became widespread when the enclosures (圈地运动) of the 17th and 18th centuries made many people dependent on paid work by depriving them of the use of the land, and thus of the means to provide a living for themselves. Then the factory system destroyed the cottage industries and removed work from people’s homes. Later, as transport improved, first by rail and then by road, people traveled longer distances to their places employment until eventually, many people’s work lost all connection with their home lives and places in which they lived.
Meanwhile, employment put women at a disadvantage. It became customary for the husband to go out to paid employment, leaving the unpaid work of the home and family to his wife.
All this may now have to change. The time has certainly come to switch some effort and resources away from the impractical goal of creating jobs for all, to the urgent practical task of helping many-people to manage without full-time jobs.

It can be inferred from the passage that ______ .

A.the creation of jobs for all is an impossibility

B.we must make every effort to solve the problem of unemployment

C.people should start to support themselves by learning a practical skill

D.we should help people to get full-time jobs

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