首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
金融经济
根据下列内容,回答196-200题。 Water problems in the future will become more intense and...
根据下列内容,回答196-200题。 Water problems in the future will become more intense and...
admin
2020-12-24
184
问题
根据下列内容,回答196-200题。
Water problems in the future will become more intense and more complex. Our increasingpopulation will tremendously increase urban wastes, primarily sewage. On the other hand, increas-ing demands for water will decrease substantially the amount of water available for diluting wastes.
Rapidly expanding industries which involve more and more complex chemical processes will pro-duce large volumes of liquid wastes, and many of these will contain chemicals which are poi-sonous. To feed our rapidly expanding population, agriculture will have to be intensified. This willinvolve ever-increasing quantities of agriculture chemicals. From this, it is apparent that drasticsteps must be taken immediately to develop corrective measures for the pollution problem.
There are two ways by which this pollution problem can be lessened. The first relates to thetreatment of wastes to decrease their pollution hazard. This involves the processing of solid wastesprior to disposal and the treatment of liquid wastes, or effluents, to permit the reuse of the wateror best reduce pollution upon final disposal.
A second approach is to develop an economic use for all or a part of the wastes. Farm manureis spread in fields as a nutrient or organic supplement. Effluents from sewage disposal plants areused in some areas both for irrigation and for the nutrients contained. Effluents from other process-ing plants may also be used as a supplemental source of water. Many industries, such as meat andpoultry processing plants,are currently converting former waste production into marketablebyproducts. Other industries have potential economic uses for their waste products.
The purpose of this passage is___________.
选项
A.to warn the reader of the dwindling water supply
B.to explain industrial uses of water
C.to acquaint the reader with water pollution problems
D.to demonstrate various measures to solve the pollution problem
答案
C
解析
根据文章第一段的第一句“Water problems in the future will become more intense and more complex."可知.将来水污染的问题会变得越来越严峻和复杂。下面具体阐述了可能产生的严重问题,作者在第二段和第三段讲了解决这一问题的两个措施。所以,此文章的目的是让读者熟悉和了解水污染问题,C为正确答案。
转载请注明原文地址:https://ti.zuoweng.com/ti/Isk8KKKQ
相关试题推荐
对任务指向型教师的教学监控能力训练的内容主要包括____、教学反馈技术和____。
根据福勒和布朗的研究,教师成长可分为____、关注情境和____三个阶段。
测量主要是一种收集资料数据的过程,是根据某种标准和一定的操作程序,将学生的学习____确定为一种量值,以表示学生对所测问题了解的多少。
测验前的计划包括()。A.确定测验的目的B.确定测验要考查的学习结果C.列出测验要包括的课程内容D.写下考试计划或细目表E.选择适合的题型
下列关于信度与效度的说法中,不正确的是()。A.信度既包括在时间上的一致性,也包括内容和不同评分者之间的一致性B.效度考虑的问题是:测验测量什么?测验对测量目
根据教学评价的严谨程度,可分为()。A.形成性和总结性评价B.常模参照与标准参照评价C.配置性和诊断性评价D.正式和非正式评价
根据教学评价的功能,可将其分为()。(2009年,天津)A.形成性评价与总结性评价B.常模参照评价与标准参照评价C.配置性评价与诊断性评价D.正式评价与非
根据课堂纪律形成的原因,课堂纪律分成哪四种类型?
松散群体是指学生们只在空间和时间上结成群体,但成员间尚无共同活动的()。A.目的和内容B.共同语言C.深厚友谊D.约束力量
情感领域的教学目标根据价值内化的程度分为()。A.两个等级B.五个等级C.三个等级D.四个等级
随机试题
(98-100题共用备选答案) A.脑血栓形成 B.脑栓塞 C.椎动脉系统
妊娠期糖尿病后5个月,每天增加能量约()。 A.90kcal B.100kc
为改善微循环最好采用下列哪项措施 A、纠正酸中毒 B、大量激素 C、扩
A.钙 B.铁 C.锌 D.镁 E.磷
男性,23岁。3周前有不洁注射史,近6天来出现发热,体温最高38.2℃,无寒战,
垫层应具有一定的( ),在冰冻区应具有较好的抗冻性。A.强度B.水稳定性C.防水性D.刚度E.弹性
编制工程量清单出现计算规范附录中未包括的清单项目时,编制人应作补充,下列有关编制补充项目的说法中正确的是()。A.补充项目编码应由B与三位阿拉伯数字组成B.
临床检查时应特别注意的是A.牙折线的方向及位置B.叩痛C.冷热诊D.电活力测定E.牙齿颜色
颞下颌关节紊乱病的病因是A:精神因素B:关节负荷过重C:免疫因素D:解剖因素E:多因素相互作用的结果
共用题干 李先生于2013年在北京购买了一套面积为100平方米的自住普通住房(家庭首套住房),每平方米均价为9000元,低于当地均价,容积率为4.7。目...