作者：英吉
Highway Official: When resurfacing our concrete bridges, we should use electrically conductive concrete (ECC) rather than standard concrete. In the winter, ECC can be heated by passing an electric current through it, thereby preventing ice buildup. The cost of the electricity needed is substantially lower than the cost of the de-icing salt we currently use.
Taxpayer: But construction costs for ECC are much higher than for standard concrete, so your proposal is probably not justifiable on economic grounds.
Which of the following, if true, could best be used to support the highway official’s proposal in the face of the taxpayer’s objection?
A、The use of de-icing salt causes corrosion of the reinforcing steel in concrete bridge decks and damage to the concrete itself, thereby considerably shortening the useful life of concrete bridges.
B、Severe icing conditions can cause power outages and slow down the work of emergency crews trying to get power restored.
C、In weather conditions conducive to icing, ice generally forms on the concrete surfaces of bridges well before it forms on parts of the roadway that go over solid ground.
D、Aside from its potential use for de-icing bridges, ECC might also be an effective means of keeping other concrete structures such as parking garages and airport runways ice free.
E、If ECC were to be used for a bridge surface, the electric current would be turned on only at times at which ice was likely to form.
问题分析：A无非讲的是使用除冰盐会有什么害处（这个害处可以施动于桥，爱怎么编怎么编，不一定是减少寿命）原文第二个人认为使用ecc不好，而这个选项说用老方法会有其他副作用，显然能驳斥，留着。B说结冰的条件将会导致能源泄露降低救援效率，没提，杀。C说的是冰会在什么地方形成，显然没提，杀。D说Ecc对其他桥有什么好处，其他车和原文探讨的那种车有什么关系？杀。E说用了Ecc电流会在什么时候开，很扯，杀。
