OG23逻辑

EUPHORIAzzc

【OG23-513题】

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.
  
  
  

这道题我错选了A，请问有大拿愿意简单解答下吗

Turpy

C