OG13 CR第一个题就觉得不明白啊

songxueer

如题。
不是问为什么市民会买QF的purification system而不需要保持一个conventional 的system,为什么会是c 感觉完全没有关系啊？
摆脱大牛帮帮忙〜

liuqiangde

题目说这种迅速制冷的东西能杀菌，而且必须在冷的环境下----背景。 这东西将会被用于污水处理---计划 但是这东西不会代替传统净水设备 问：虽然如此，为什么还买呢？ 解题思路：找这种东西跟传统东西的区别。文中强调的只有“QF必须在冷的环境下才有效”。 所以答案应该focus on在这个点上 A： 无关，文中只关心细菌 B： 无关，就算need to be replaced, 那么就必须用QZ？ C： 如果传统的在冷的环境下不好用，那就给了QZ可趁之机，正好QZ用于冷环境下 D：不知道传统的工具维护费是多少，无法比较。只说ＱＺ是littel, 但是传统的可能是less E:water shortage is not an differentiated issue here.

faring56

问题就出在despite那里 不知道我理解的对不

krusher

感觉题目问的意思是尽管政府要买conventional的 但依然会买QF的 因为答案中的：conventional的杀不净细菌

songxueer

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.

stevenckguo

最好题目问题都贴出来，没有OG的说。