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
考研
A.all of that B.as if it were C.fresh water supply D.in this field A.A limited【T13】______ B.so that it can be used again j
A.all of that B.as if it were C.fresh water supply D.in this field A.A limited【T13】______ B.so that it can be used again j
admin
2015-07-15
28
问题
A.all of that B.as if it were C.fresh water supply D.in this field
A.A limited【T13】______
B.so that it can be used again just【T14】______from a spring
C.And we cannot even use【T15】______
D.Experiments have already been done【T16】______
The world is not only hungry, it is also thirsty for water. It seems there is plenty of water, but about 97% of this huge amount is sea-water, or salt water. Man can only drink and use the other 3% fresh water.【T17】______, because some of it is in the form of icebergs and glaciers. Even worse, some of it has been polluted.
At the moment, his small amount of fresh water is still enough for us. However, our need for water is increasing rapidly. Only if we take steps to deal with this problem now, can we avoid a severe worldwide water shortage later on. One of the useful steps we can take is to stop unlimited use of water.【T18】______, however, would have a bad effect on agriculture and industry.
In addition to stopping wasting our precious water, one more useful step we should take is to develop ways of reusing it.【T19】______, but only on a small scale.
Today, in most large cities, water is used only once and it eventually returns to the sea or runs into underground storage tanks. But it is possible to pipe water that has been used to a purifying plant. There it can be filtered and treated with chemicals【T20】______.
【T19】
选项
答案
D
解析
空白处前一句说的是“除了停止浪费我们珍贵的水资源,我们要采取的重要的一步就是发明重复利用水的方法”,空白处后面的句子说的是“但是只是小规模的”,所以这个空格内填入的应该与发明重复利用水源的方法有关,所以选项D“在这个领域内开展了很多实验”为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/rWQi777K
0
在职申硕(同等学力)英语
相关试题推荐
SomeofthesestudiesAhaveshownthatalthoughsomepeoplehavetroubleBtofallasleep,othershaveCanequallydifficulttime
Lateralthinking(迂回思维),firstdescribedbyEdwarddeBonein1967,isjustafewyearsolderthanEdward’sson.Youmightimagi
EvenbeforeHistorianJosephEllisbecameabest-sellingauthor,hewasfamousforhisvividlectures.Inhispopularcoursesat
Whatisthepassagemainlyabout?Whichofthefollowinghasbeendonebytheauthorhimself?
JohnGrishamis______atpresent.WhichofthefollowingisNOTtrueofthenovelTheFirm?
Inasense,thenewprotectionismisnotprotectionismatall,atleastnotinthetraditionalsenseoftheterm.Theoldprotec
Thereisnoquestionthattheoldstyleofairpollutioncouldkillpeople.Inoneweekfollowingtheinfamous"peasouper"fogi
Canyoucompressyourspeechintofiveminutesduetolimitedtimeforthemeeting?
Thedestructionofournaturalresourcesandcontaminationofourfoodsupplycontinuetooccur,largelybecauseoftheextreme
随机试题
肾病综合征最常见的并发症为()
A.国家卫生和计划生育委员会B.国家食品药品监督管理总局C.国家中医药管理局D.国家发展和改革委员会制定部门规章、标准和技术规范的是
大气环境质量现状监测结果统计分析,应以()给出各监测点大气污染物的不同取值时间的浓度变化范围,计算出各取值时间最大浓度值占相应标准浓度限值的百分比和超标率。
钢的碳含量为()。
下列选项中是债券与股票的相同点的是()。
下列说法中,正确的是()。
A、9B、10C、11D、12D(7-3)×9=36,(15-12)×4=12,(35-15)×6=120;(7-6)×12=(12)。
下列哪一项个人所得不应免纳个人所得税?()
WhenrecruitingatBritishuniversities,PricewaterhouseCoopers,oneoftheBigFourauditingfirmswithitsheadquartersinthe
WouldyoubelievethatthefirstoutstandingdeafteacherinAmericawasLaurentClerc,aFrenchman?At12,he【C1】______theRoya
最新回复
(
0
)