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一道题 OG12-11
11. Wood smoke contains dangerous toxins that cause changes in human cells. Because wood smoke presents such a high health risk, legislation is needed to regulate the use of open-air fires and wood-burning stoves.
Which of the following, if true, provides the most support for the argument above?
(B) Within the jurisdiction covered by the proposed legislation, most heating and cooking is done with oil or natural gas.(为什么错了?)
(E) In valleys where wood is used as the primary heating fuel, the concentration of smoke results in poor air quality.(正确,为什么呢?)
谢谢~ |
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