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题库 / Prep2007E1-CR-61
Which of the following best completes the passage below?
At a recent conference on environmental threats to the North Sea, most participating countries favored uniform controls on the quality of effluents, whether or not specific environmental damage could be attributed to a particular source of effluent. What must, of course, be shown, in order to avoid excessively restrictive controls, is that __________.
any uniform controls that are adopted are likely to be implemented without delay
any substance to be made subject to controls can actually cause environmental damage
the countries favoring uniform controls are those generating the largest quantities of effluents
all of any given pollutant that is to be controlled actually reaches the North Sea at present
environmental damage already inflicted on the North Sea is reversible
答案取非，可以推出过度控制：
B 被控制的物质都会对环境造成破坏-------有些被控制的物质不会对环境造成破坏-------过度控制（可以推出）
D 所有将被控制的污染物目前正流入北海--------有一些不会流入北海--------对这些污染物的控制仍然是必要的，不能推出过度控制
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