The accommodation officer received details of some accommodation ______.
A. the day before Martina made the appointment.
B. the day Martina made the appointment.
C. the day after Martina made the appointment.
D. the day before he met Martina.
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某建设项目及其主要生产车间的有关费用见下表,则该生产车间新增固定资产价值为()万元。 某项目及主要车间有关费用表
A. 645.37
B. 830.00
C. 642.50
D. 792.70
以下关于城市工程管线综合规划原则的论述正确的是()。A.分支线少、埋设深、检修周期短和可燃、易燃和以下关于城市工程管线综合规划原则的论述正确的是()。
A. 分支线少、埋设深、检修周期短和可燃、易燃和损坏时对建筑物基础安全有影响的工程管线应远离建筑物
B. 当工程管线与铁路或公路交叉时宜为垂直交叉布置。在受条件限制时,可以倾斜交叉布置,其交叉角不宜小于45°
C. 一般各管线从道路红线向道路中心线方向平行布置次序为:电力电缆、电信电缆、燃气配气、给水配水、燃气输气、给水输水、热力干线、雨水排水、污水排水
D. 当工程管线交叉敷设时,自地表向下的排顺顺序宜为:电力管线、热力管线、燃气管线、给水管线、雨水排水管线、污水排水管线
E. 电信线路与供电线路通常不合杆架设
It can be inferred from the text that in Britain euro has been accepted
A. gradually and substantially.
B. noticeably and spiritually.
C. inevitably and sensibly.
D. verbally and momentarily.
Although SF seems to take as its future social settings nothing more ambiguous than the current status quo or its totally evil variant, SF is actually a more important vehicle for speculative visions about macroscopic social change. At this level, it is hard to deal with any precision as to when general value changes or evolving social institutions might appear, but it is most important to think about the kinds of societies that could result from the rise of new forms of interaction, even if one cannot predict exactly when they might occur.
In performing this "what if…" function, SF can act as a social laboratory as authors ruminate upon the forms social relationships could take if key variables in their own societies were different, and upon what new belief systems or mythologies could arise in the future to provide the basic rationalizations for human activities. If it is true that most people find it difficult to conceive of the ways in which their society, or human nature itself, could undergo fundamental changes, then SF of this type may provoke one's imagination—to consider the diversity of paths potentially open to society.
Moreover, if SF is the laboratory of the imagination, its experiments are often of the kind that may significantly alter the subject matter even as they are being carried out. That is, SF has always had a certain cybernetic effect on society, as its visions emotionally engage the future—consciousness of the mass public regarding especially desirable and undesirable possibilities. The shape a society takes in the present is in part influenced by its image of the future; in this way particularly powerful SF images may become self-fulfilling or self-avoiding prophecies for society. For that matter, some individuals in recent years have even shaped their own life styles after appealing models provided by SF stories. The reincarnation and diffusion of SF futuristic images of alternative societies through the media of movies and television may have speeded up and augmented SF's social feedback effects. Thus SF is not only change speculator but change agent, send an echo from the future that is becoming into the present that is sculpting it. This fact alone makes imperative in any education system the study of the kinds of works discussed in this section.
In discussing the subject matter of SF, the author focuses on
A. its main functions.
B. its great diversity.
C. its bold assumptions.
D. its social impact.