请大家帮忙看看这题

hedgeforfun

91. Leachate is a solution, frequently highly contaminated, that develops when water permeates a landifill’s site. If and only if the landfill’s capacity to hold liquids is exceeded does the leachate escape into the environment, generally in unpredictable queantities. A method must be found for disposing of leachate. Most landfill leachate is sent directly to sewage treatment plants, but not all sewage plants are capable of handling the highly contaminated water.
Which one of the following can be inferred from the passage?
(A) The ability to predict the volume of escaping landfill leachate would help solve the disposal problem.
(B) If any water permeates a landfill, leachate will escape into the environment.
(C) No sewage treatment plants are capable of handling leachate.
(D) Some landfill leachate is sent to sewage treatment plants that are incapable of handling it.
(E) If leachate does not escape from a landfill into the environment, then the landfill’s capacity to hold liquids has not been exceeded.
选e,我选了d,我觉得d也很好.有什么不对?

kathy72

将D取非后并不能削弱原文.
文中说了并不是所有的污水处理厂均可以处理..., 但并没有说那些污水是送到所有的厂(这里隐含了一个可能性, 即污水仅送到有处理能力的厂)

cranberry

d is not metioned in the passage and how could it be inferred from the passage?