题目内容

Passage 1If you have never seen a power plant, you might find it hard to imagine how enormously complex the equipment is or how much heat is generated by the boilers or how much coal it takes to fuel the furnaces for just one day.During the course of a day, the boilers at one of our power plants, Morgantown, for example, can turn 24 million gallons of water into steam. That generating plant alone uses 9,900 tons of coal in its furnaces in just one day. Potomac Electric Power Company (PEPCO) uses so much coal that we have purchased two 80-car unit trains to facilitate the delivery process. And Morgantown alone can produce over 25 million kilowatthours of electricity in a single day's operation.Electricity is produced by spinning large magnets inside a coil of wire within the generator. The faster we spin the magnets, the higher will be the voltage of the electricity produced. Electricity leaves a PEPCO generator at between 13,800 and 24,000 volts.The next step in the process occurs when electricity passes through a transformer where the voltage is stepped up to continue on its journey. A transmission wire is like a small diameter pipe. Stepping up the voltage is like increasing water pressure, thus speeding the flow of energy through the system.

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案例分析题某肥皂厂,自1993年开始进行股份制改革,职工股份占企业总股本的96%,极大地调动了职工的工作积极性。1997~1999年在政府优惠政策的支持下,该公司收购了一家日化厂作为主营产品——肥皂的原材料供给基地,兼并了一家轻工研究所作为新产品研发的依托。2002年经有关部门批准成立企业集团,拥有8家成员企业,生产以肥皂为主导的系列产品。该企业集团通过有效的现代化管理理念和手段,大大提高了全员劳动生产率,其产品在市场上有很高知名度和美誉度,在肥皂市场的占有率长期保持领先。目前,该企业集团经营的产品品种有:肥皂、口腔护理品、仪器添加剂、化妆洗涤品等。根据上述资料,回答以下问题。 该企业集团的整体战略是()

A. 横向一体化战略
B. 集团化战略
C. 外向化战略
D. 纵向一体化战略

构成牛乳味道的成分时挥发性脂肪酸及其他挥发性物质。

A. 对
B. 错

在烘烤食品中,糖既是酵母的营养源,也是制品色、香、味形成的机制。

A. 对
B. 错

冰激凌的膨胀率与质量关系不大。

A. 对
B. 错

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