In setting environmental standards for industry and others to meet, it is inadvisable to require the best results that state-of-the-art technology can achieve. Current technology is able to detect and eliminate even extremely minute amounts of contaminants, but at a cost that is exorbitant relative to the improvement achieved. So it would be reasonable instead to set standards by taking into account all of the current and future risks involved. The argument given concerning the reasonable way to set standards presupposes that A.industry currently meets the standards that have been set by environmental authorities B.there are effective ways to take into account all of the relevant risks posed by allowing different levels of contaminants C.the only contaminants worth measuring are generated by industry D.it is not costly to prevent large amounts of contaminants from entering the environment E.minute amounts of some contaminants can be poisonous
答案是b,有没有nn可以帮忙梳理一下逻辑链啊? 这个题的结论是这是不明智的balbalab,还是最后一句话啊。 求解答~
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