OG13 CR考试复习资料.docx

8.4 Practice Questions?Each of the?critical reasoning?questions is based on a short argument, a set of statements, or a plan of action. For each question, select the best answer of the choices given.1. Snowmaking machines work by spraying a mist that freezes immediately on contact with cold air. Because the sudden freezing kills bacteria, QuickFreeze is planning to market a wastewater purification system that works on the same principle. The process works only when temperatures are cold, however, so municipalities using it will still need to maintain a conventional system.?Which of the following, if true, provides the strongest grounds for a prediction that municipalities will buy QuickFreeze’s purification system despite the need to maintain a conventional purification system as well??(A) Bacteria are not the only impurities that must be removed from wastewater.?(B) Many municipalities have old wastewater purification systems that need to be replaced.?(C) Conventional wastewater purification systems have not been fully successful in killing bacteria at cold temperatures.?(D) During times of warm weather, when it is not in use, QuickFreeze’s purification system requires relatively little maintenance.?(E) Places where the winters are cold rarely have a problem of water shortage.?2. Homeowners aged 40 to 50 are more likely to purchase ice cream and are more likely to purchase it in larger amounts than are members of any other demographic group. The popular belief that teenagers eat more ice cream than adults must, therefore, be false.?The argument is flawed primarily because the author?(A) fails to distinguish between purchasing and consuming?(B) does not supply information about homeowners in age groups other than 40 to 50?(C) depends on popular belief rather than on documented research findings?(D) does not specify the precise amount of ice cream purchased by any demographic group?(E) discusses ice cream rather than more nutritious and healthful foods?3. Suncorp, a