OG13 的第一道题问题

lillianyang

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 onlywhen 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) Manymunicipalities 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.
这道题到底属于哪一类，我想把它归于方案推理，但是总觉很奇怪；但是归于果因类，也觉得奇怪。
求大牛帮忙

lillianyang

自己，顶！新人一枚，求帮忙

Vivian1091

我觉得是因果。。
C：using QF still need to maintain a CS果
P：QF wastewater purification system works only cold.因
不是方案，统计枚举，类比。P在前，所以是因果。加强。
C:因果联系问题。CQ1：CS not useful in cold.  QF only coldCS not useful in cold QF need to maintain CS.

Hendy

简单理解成加强吧