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Which of the following is NOT included in the passage? [br] [originaltext] W
Which of the following is NOT included in the passage? [br] [originaltext] W
游客
2023-11-02
33
管理
问题
Which of the following is NOT included in the passage? [br]
Water problems in the future will become more intense and more complex. Our increasing population will tremendously increase urban wastes, primarily sewage. On the other hand, increasing demands for water will decease substantially the amount of water available for diluting wastes.(14)Rapidly expanding industries which involve more and more complex chemical processes will produce large volumes of liquid wastes, and many of these will contain chemicals which are noxious. To feed our rapidly expanding population, agriculture will have to be intensified. This will involve ever-increasing quantities of agricultural chemicals, it is apparent from this, that drastic steps must be taken immediately to develop corrective measures for the pollution problem.
There are two ways by which this pollution problem can be reduced. The first relates to the treatment of wastes to decrease their pollution hazard.(15)A second approach is to develop an economic use for all or part of the wastes. Farm manure is spread in fields as a nutrient or organic supplement. Effluents from sewage disposal plants are used in some areas both for irrigation and for nutrients. Effluents from other processing plants may also be used as a supplemental source of water. Many industries, such as meat and poultry processing plants, are currently converting former waste products into marketable by-products. Other industries will also have potential economic uses for waste products.
选项
A、alert the reader to reduce the water use
B、explain the industrial uses of water
C、acquaint the reader with water pollution problems
D、demonstrate various measures to solve the pollution problem
答案
C
解析
主题总结题。从整体上来看,这篇短文分为两部分,先是说明了水污染的情况,接着又指出两种减少污染的方法。因此C为正确答案。
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