首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Water is tasteless, odorless, and nearly colorless (it has a slight hint of blue). It is a【C1】______ that is essential to all kn
Water is tasteless, odorless, and nearly colorless (it has a slight hint of blue). It is a【C1】______ that is essential to all kn
admin
2010-04-30
47
问题
Water is tasteless, odorless, and nearly colorless (it has a slight hint of blue). It is a【C1】______ that is essential to all known forms of life in its pure form. Water is【C2】______ on Earth. It exists in many places and forms. It appears mostly in the oceans and polar ice caps, but also【C3】______ clouds, rain water, rivers, freshwater aquifers, and sea ice. On the planet, water is【C4】______ moving through the cycle involving evaporation, precipitation, and runoff to the sea.
Water fit for human【C5】______ is called potable water. This natural resource is becoming【C6】______ in certain places as human population in those places increases, and its availability is a major social and economic【C7】______ .
Drinking water is water that is intended to be drunk by humans. Water of【C8】______ quality to serve as drinking water is called potable water whether it is used as such or not. Although most fresh water sources are drinkable【C9】______ humans, they can be a disease vector or cause long-term health problems if they do not【C10】______ certain water quality guidelines.
Most nations have water quality regulations for water sold as drinking water, although these are often not strictly【C11】______ outside of the developed world. Virtually all municipal water systems deliver a single quality of water, whether it is to be used for drinking, washing or landscape irrigation.
In the United States, public drinking water is【C12】______ by the Safe Drinking Water Act (SDWA). Among other【C13】______ , it protects the right of employees to report potential【C14】______ . Within 30 days of any retaliation, a whistleblower can file a complaint with the Occupational Safety and Health Administration (OSHA).
So far【C15】______ bacterial is concerned, the usual test is for a count of (more often than not harmless) bacteria, it【C16】______ that these serve as an indication of water pollution.
Water purification is the removal of contaminants from【C17】______ water to produce drinking water that is pure enough for humans. Many contaminants can be dangerous —but【C18】______ the quality standards, others are removed to improve the water’s smell,【C19】______ , and appearance.
It is not possible to tell whether water is safe to drink just by looking at it. Simple procedures such as boiling are not sufficient for treating water from an unknown source. Even natural spring water —【C20】______ safe for all practical purposes in the 1800’s —must now be tested before determining what kind of treatment is needed.
【C14】
选项
A、violent
B、disobedient
C、violations
D、violence
答案
C
解析
A表示“暴力的”,D表示“暴力”,都与这里的句义不搭配;B表示“不服从的”,是形容词,词性不符合这里的要求;C尽管和A与D是同根词,但violation 可以表示“(对某种规矩或规则的)触犯”,本句的意思是“员工有权举报可能触犯SDWA 的行为”,所以选择C。
转载请注明原文地址:https://kaotiyun.com/show/DwOK777K
0
大学英语六级
相关试题推荐
Inthepast,manydoctorsmanagedtofoolpatientsbytakingadvantageof______.Whydidn’tthequacksprescribeanymedicine
Sports,inshort,areakindofeducation,whichcanteachimportantlifeskillsthatcan’tbelearnedinschool.Thetradition
Forthispart,youaresupposedtowriteastartessayentitledShouldEuthanasiaBeLegalized?Youshouldwriteatleast150wo
A、Thewomandoesn’tlikeorangejuice.B、Thewomandidn’tcometoseeEverett.C、Themanwasinacarcrashthismorning.D、The
A、Theywillhavestudents.B、Theywillhaveanaudience.C、Theywillhaveateacher.D、Theywillhavebuyers.BWhatshouldthea
Publicopinionpollsareregularlyconductedandpublishedinmanycountries.They(36)______notonlysupportforpoliticalpar
A、Theyusuallyacceptresponsibility.B、Theyblamefactorsbeyondtheircontrol.C、Theycomplainabouttheirpersonalproblems.
ThereisnearlyeverythingonsalesateBay,andevenhumankidneyisallowed.Humanpsychologydecidesthatourmaximumbidsh
TheAmericaneducationsystemrequiresthatstudentscomplete12yearsofprimaryandsecondaryeducationpriortoattendinguni
随机试题
热电偶温度计是基于()的原理来测温的。
设区域D为x2+y2=1所围成的区域,则(1-x2-y2)dxdy=________.
胃最重要的运动是()
水泥混凝土路面施工时,按路面使用混凝土的( )强度作配合比设计。
背景某机场建设项目指挥部,通过招投标程序与某施工单位(总承包方)按照《建设工程施工合同(示范文本)》(GF—2017—0201)签订了施工合同。合同总价款5244万元,采用固定总价合同一次性包死,合同工期400d。施工中发生了以下事件:事件一:发包方
出口商品运输包装容器生产企业质量许可证的有效期为( )年,出口商品的运输包装容器的生产单位如果允许生产该产品时,须在质量许可证有效期满( )个月内重新提出申请。
Beth:Youlookalittlepale.AreyouOK?Jerry:______Ifeelterrible.
“物质的两种存在形式离开了物质,当然都是无,都是只在我们头脑中存在的观念抽象”。这段话说明
[2001年]以下是我国冶金企业的改革经验和效果的部分材料:材料11990年,邯钢与其他钢铁企业一样,面临内部成本上升、外部市场疲软的双重压力,经济效益大面积滑坡。当时生产的28个品种有26个亏损,总厂已到了难以为继的状况,然而各分厂报表中所
Whatdoesthewomantrytodointheconversation?
最新回复
(
0
)