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biss33

2.       Woodsmoke contains dangerous toxins that cause changes in human cells. Because woodsmoke 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?

(A) The amount of dangerous toxins contained in woodsmoke is much less than the amount contained in an equal volume of automobile exhaust.

(B) Within the jurisdiction covered by the proposed legislation, most heating and cooking is done with oil or natural gas.

(C) Smoke produced by coal-burning stoves is significantly more toxic than smoke from wood-burning stoves.

(D) No significant beneficial effect on air quality would result if open-air fires were banned within the jurisdiction covered by the proposed legislation.（E）

(E) In valleys where wood is used as the primary heating fuel, the concentration of smoke results in poor air quality

不知咋搞得，这题就是绕不出来了。哪位大虾可否教教俺b为什么不对?我咋看着e就不明白为啥对呢？

多谢多谢

biss33

up up

lindazhou

same question

晶莹水滴

(B) Within the jurisdiction covered by the proposed legislation, most heating and cooking is done with oil or natural gas.

If most heating and cooking is done with oil or natural gas,  harms from woodsmoke would be minimal and neglegible, then the proposal for legislation could not be justified. (B) weakens the conclusion.

biss33

3xs