[简答题]The chemical industry depends very heavily on petroleum and natural gas as sources of raw materials. It is likely that in excess of 80% of the literally thousands of different basic organic chemicals employed today are derived from these sources. The petrochemical industry has grown with the petroleum industry. As is the case with the latest trends in changing crude oil types, it must also evolve to meet changing technological and humanitarian needs. The manufacture of chemicals from petroleum and natural gas constituents is an excellent example of the conversion of such materials to more valuable products. The individual chemicals made from petroleum and natural gas numerous and include industrial chemicals, household chemicals and paints, as well as intermediates for the manufacture of products, such as synthetic rubber and plastics. The processing of petroleum hydrocarbon to yield materials that are, essentially, the building blocks of other chemicals industries, is now ve

[单项选择]....... widely used in the chemical industry, sodium carbonate is principally consumed by the glass industry. (a)Despite (b)Whether (c)Though (d)Except for

[简答题]Can you lift this heavily box for me

[简答题]Missouri is a heavily industrialized state whose leading products are A B C transportation equipment, processed food, and chemical. D

[单项选择]The economy in the United States is heavily dependent on aluminum, a material widely used in the construction of buildings and in making such diverse things as cars, airplanes, and food containers. In 1979 Americans used over five million tons of new aluminum, and one and a half million tons of recycled aluminum. Some ninety percent of the bauxite (矾土) ore from which new aluminum is normally derived had to be imported, to meet the demand. Poorer ores are abundant in the United States, however, and researchers at Purdue University may recently have found a way to obtain aluminum magnetically from these.
Although aluminum is not attracted by ordinary magnets, under special conditions it becomes temporarily "paramagnetic", or very weakly responsive to a magnetic field. This is achieved by immersing ore particles in water to which certain salts have been added and then filtering the ore through steel wool in the presence of a strong magnetic field. It is hoped that this technique will
A. construction and manufacturing industry in the United States
B. new technique of obtaining aluminum from poor ores
C. consumption and production of aluminum in the United States
D. the annual import of high-grade aluminum into the United States

[填空题]Which company has just invested heavily in an unpublished children’s book

[简答题] If sustainable competitive advantage depends on work-force skills, American firms have a problem. Human-resource management is not traditionally seen as central to the competitive survival of the firm in the United States. Skill acquisition is considered an individual responsibility. Labour is simply another factor of production to be hired — rented at the lowest possible cost — much as one buys raw materials or equipment. The lack of importance attached to human-resource management can be seen in the corporate hierarchy. In an American firm the chief financial officer is almost always second in command. The post of head of human-resource management is usually a specialized job, off at the edge of the corporate hierarchy. The executive who holds it is never consulted on major strategic decisions and has no chance to move up to Chief Executive Officer (CEO). By way of contrast, in Japan the head of human-resource management is central — usually the second most important executi