水泥安定性是指()。 A.温度变化时,胀缩能力的大小 B.冰冻时,抗冻能力的大小

题型:单项选择题

问题:

水泥安定性是指()。

A.温度变化时,胀缩能力的大小

B.冰冻时,抗冻能力的大小

C.硬化过程中,体积变化是否均匀

D.拌合物中保水能力的大小

考点:一级注册建筑师建筑材料与构造(一级)综合练习建筑材料与构造(一级)综合练习题库
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财政政策的工具主要包括______。

A.政府投资

B.税收政策

C.公债政策

D.公共工程支出政策

题型:单项选择题

会展行业协会在会展业发展过程中的作用不包括()。

A.审定年度会展计划

B.核查会展组织者能力和信誉

C.举办会展

D.支持中小企业到海外办展

题型:单项选择题

张女士打算为女儿10年后出国留学筹集教育金。留学四年每年学费的现值为8万元。如果张女士现有存款6万元,学费的年成长率为4%,年名义投资回报率为6%,张女士每月的教育金储蓄至少应该达到(),才能满足女儿届时出国留学的需求。(答案取最接近值,假设投资按月复利)

A.2,090 元

B.2,144 元

C.2,933 元

D.1,232 元

题型:单项选择题

(46) Globalization might be welcomed on many grounds—the economic, political, communicational, and even linguistic ones come readily to mind but it also has some unfortunate side effects that might prove deadly to the very future of mankind. This is no mere surmise of congenital misanthropes, but the expressed fear of some who are otherwise well disposed to it. Thus Thomas Friedman, in an otherwise optimistically minded book, nevertheless, writes as follows:
(47) The more I observed the system of globalization at work, the more obvious it was that it had unleashed forest-crushing forces of development, which if left unchecked had the potential to destroy the environment and uproot culture...
(48) And because globalization as a culturally homogenizing and environment-devouring force is coming on so fast, there is real danger that in just a few decades it will wipe out the ecological and cultural diversity that took millions of years of human and biological forces to produce.
Something is as ominous as all that is a real threat indeed. (49) And yet, despite such apprehensions, Friedman and others who think like him believe that effects of this magnitude can somehow be sidestepped without interfering with the technicizing sweep of globalization. Is that merely wishful thinking or an inability to take in the full import of his own words
As Friedman points out, the globalization threat is at once to nature and to culture: to the environment and the whole ecological variety of plants and animals, as well as to the quality of human life and the cultural diversity on which it depends. Damage to nature eventually translates itself as damage to culture, and vice versa. The fate of many ancient civilizations that collapsed because they outgrew their natural resources is historical proof of that fact. Our modern civilization is subject to the same self-limiting conditions. (50) Thus, if all agriculture is reduced to an agribusiness industry, then the diversified countryside landscape that humans have created since the Neolithic revolution will become a monocultural ecological desert, for with it will disappear a host of animal and plant species as well as a whole rural way of life with its myriad varieties of folk cultures that have been carried on for millennia. The loss of natural species through the destruction of their natural habitat is paralleled step by step by the loss of cultural "species" through the elimination of their social habitat, which is rooted in a natural environment. The clearing of jungles does not merely exterminate the animals living there, but also the native people whose homes have been there for countless generations.

题型:单项选择题

B18、B20型机械冷藏车可组织同一发站装车的两站分卸,但两分装或分卸站应为同一径路,距离不超过()。

A.100km

B.200km

C.250km

D.300km

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