GWD-TN-7中的9-Q12

Ryan0222

A mosquito bite can transmit to a person the parasite that causes malaria, and the use of mosquito nets over children’s beds can significantly reduce the incidence of malarial infection for children in areas where malaria is common. Yet public health officials are reluctant to recommend the use of mosquito nets over children’s beds in such areas.

Which of the following, if true, would provide the strongest grounds for the public health officials’ reluctance?

A.      Early exposure to malaria increases the body’s resistance to it and results in a lesser likelihood of severe life-threatening episodes of malaria.
  

B.      Mosquito bites can transmit to people diseases other than malaria.

C.      Mosquito nets provide protection from some insect pests other than mosquitoes.

D.      Although there are vaccines available for many childhood diseases, no vaccine has been developed that is effective against malaria.

 E.  The pesticides that are most effective against mosquitoes in regions where malaria is common have significant detrimental effects on human health.

这道题怎么好像没人问啊~没有人错么？答案选的A我明白了，但是为什么C不行呢，题目说which of the following，if true 也就是说在选项正确的前提下判断，但如果C正确的话确实可以成为不支持用蚊帐的理由，但又与文章中的the use of mosquito nets over children’s beds can significantly reduce the incidence of malarial infection for children in areas相矛盾，怎么回事呢？请高人解答

[此贴子已经被作者于2008-11-9 15:10:56编辑过]

vincentwh

 c, 不对，c 在强词夺理，文中明显说蚊帐可以减低蚊子的侵犯，而C说 蚊帐只能保护其它昆虫的侵犯，而不能保护蚊子的侵犯。

凡是“抬杠”的选项，都不会是对的。