问题 单项选择题

Text 4

Cyberspace, data superhighway, multi-media—for those who have seen the future, the linking of computers, television and telephones will change our lives forever. Yet for all the talk of a forthcoming technological utopia little attention has been given to the implications of these developments for the poor. As with all new high technology, while the West concerns itself with the "how". the question of "for whom" is put aside once again.
Economists are only now realizing the full extent to which the communications revolution has affected the world economy. Information technology allows the extension of trade across geographical and industrial boundaries, and transnational corporations take full advantage of it. Terms of trade, exchange and interest rates and money movements are more important than the production of goods. The electronic economy made possible by information technology allows the haves to increase their control on global markets--with destructive impact on the have-nots.
For them the result is instability. Developing countries which rely on the production of a small range of goods for export are made to feel like small parts in the international economic machine. As "futures" are traded on computer screens, developing countries simply have less and less control of their destinies.
So what are the options for regaining control One alternative is for developing countries to buy the latest computers and telecommunications themselves—so-called "development communications" modernization. Yet this leads to long-term dependency and perhaps permanent constraints on developing countries’ economies.
Communications technology is generally exported from the U. S., Europe or Japan; the patents, skills and ability to manufacture remain in the hands of a few industrialized countries. It is also expensive, and imported products and services must therefore be bought on credit--credit usually provided by the very countries whose companies stand to gain.
Furthermore. when new technology is introduced there is often too low a level of expertise to exploit it for native development. This means that while local elites, foreign communities and subsidiaries of transnational corporations may benefit, those whose lives depend on access to the information denied it.

From the passage we know that the development of high technology is mostly in the interests of ______.

A.the world economy

B.the rich countries

C.scientific development

D.the elite

答案

参考答案:B

解析:文章第一段谈到,西方发达国家在网络空间、数字高速公路、多媒体等高端技术方面迅猛发展的同时,他们对贫困国家的利益却并不重视。文章第二段第一句话进一步指出,电子经济使得发达国家进一步控制全球市场,从而给贫困国家造成了毁灭性的影响。第三段和第四段接着谈到贫困国家在发展电讯事业方面对发达国家的长期依赖使得本国经济受到长期的约束。由此可推断,选项B符合题意。所以本题正确答案应当为B。

选择题
问答题

2008年,G淀粉公司雇佣临时人员把仓库改造成第三生产车间。该车间为长80m、宽50m、高15m的桁架砖混结构建筑,分成打包间和产品暂存间。打包间用7m高砖墙与暂存间分隔。打包间内有打包机8台、振动筛8台。振动筛安装在6m高的二层钢制平台上,振动筛内筛子采用木质框架,筛子四角与振动筛用铁质螺栓连接。振动筛开关和电动机为防爆电器设备。
2010年3月10日10时30分,当班班长甲发现4号打包机故障,二层钢制平台滞留了大量淀粉,正散落到打包间地面。甲关停4号打包机,并向车间主任报告。14时,甲带领10名工人到二层钢制平台清理淀粉。一部分工人使用扫把、铁锹等工具清理平台上的淀粉,装包后,通过楼梯把成包淀粉滚落到打包车间地面,或从二层平台直接将淀粉包扔到打包间地面。另一部分工人用铁制扳手卸下筛子,用铁棍敲打清理筛子上的淀粉。
当清理工作进行到15时10分时,突然发生燃爆,而后发生多次爆炸,打包间一片火海,第三生产车间厂房的四面墙体全部倒塌。事发时,打包间和暂存间分别有作业人员19人和79人。事故导致18人死亡、7人重伤、38人轻伤。
事故发生后,当地政府立即成立现场救援指挥部。搜救人员多次进入车间搜救,利用切割机、生命探测仪、液压顶杆、起重气垫等装备进行救援,并在厂房周边同时用消防水枪降温,防止再次燃爆。

根据以上场景,回答下列问题:


指出引起此次淀粉燃爆的基本条件。