标题: 帮小妹指教T-3-Q29 [打印本页] 作者: 葛佳 时间: 2010-5-27 16:02 标题: 帮小妹指教T-3-Q29 T-3-Q29. The emission of sulfur dioxide when high-sulfur coal is burned is restricted by law. New coal-burning plants usually comply with the law by installing expensive equipment to filter sulfur dioxide from their emissions. These new plants could save money by installing instead less expensive cleaning equipment that chemically removes most sulfur from coal before combustion.
Which of the following, if known, would be most relevant to evaluating the claim above about how new-coal burning plants could save money?
A. Whether existing oil-burning plants are required to filter sulfur dioxide from their emissions. B. Whether the expense of installing the cleaning equipment in a new plant is less than the expense of installing the cleaning equipment in an older plant. C. Whether the process of cleaning the coal is more expensive than the process of filtering the emissions D. Whether lawful emissions of sulfur dioxide form coal-burning plants are damaging the environment. E. Whether existing plants that use the filtering equipment could replace this equipment with the cleaning equipment and still complete with new plants that install the cleaning equipment.
原文最后的单词combustion是燃烧的意思 话说有看不懂的单词真的有很大障碍的 我也是查了单词后才明白的选项。。。 焦虑中。。。 忽然发现有好多看不懂的词 可是马上就要上战场了。。。作者: yawei5252 时间: 2010-5-29 13:40
我也选的C…你应该没有仔细读题吧，你再好好看看B，它没有说题目中的新厂中是用新的烧的设备还是用化学处理设备，而是说的无关紧要的新旧厂的问题，作者: holacraig 时间: 2010-5-29 16:02
应该比较明显是选C吧，需要把安装设备和安装之后使用的费用分开对待。作者: peter3008 时间: 2010-9-21 08:00
The emission of sulfur dioxide when high-sulfur coal is burned is restricted by law. New coal-burning plants usually comply with the law by installing expensive equipment to filter sulfur dioxide from their emissions. These new plants could save money by installing instead less expensive cleaning equipment that chemically removes most sulfur from coal before combustion.
Which of the following, if known, would be most relevant to evaluating the claim above about how new-coal burning plants could save money?
注意读题: 结论在问题里面已经告诉你了,how new-coal burning plants could save money 看提干: new equp: expensive filter SO2 after burned old equp: cheap filter S before burned 目的: To save money
评价: 是否new equp可以节省money
new equp 的安装费已经比old equp贵了作者: caoqin1981 时间: 2011-10-2 11:26
new equp 的安装费已经比old equp贵了?
这道题首先误区是到底装贵的设备还是便宜的设备，C是说虽然你图便宜装了，但是装了后煤清洁这个过程更费钱。作者: yakev6 时间: 2012-5-27 02:36
total cost= equipment cost(fix cost) + operation cost (process cost) from the stimulus we know cleaning equipment is less expensive than filter euipment, thus, to evaluate the the total cost saving between two technologies is to check the process cost gap between two methods. that is what C is talking about. C. Whether the process of cleaning the coal is more expensive than the process of filtering the emissions作者: nihongmeng 时间: 2012-6-20 22:09
我只是不懂These new plants could save money by installing instead less expensive cleaning equipment that chemically removes most sulfur from coal before combustion. 这句话中的instead是什么意思。。。作者: onlylefthand 时间: 2012-11-23 21:55
我觉得其实这题应该这样考虑。现在旧厂装合法的燃烧后去硫装置=贵 新厂装燃烧前去硫装置=便宜