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
Acid rain leads to fish mortality. Many species of fish cannot survive in aquatic environments where the pH is below 5.0. If the
Acid rain leads to fish mortality. Many species of fish cannot survive in aquatic environments where the pH is below 5.0. If the
admin
2013-01-28
53
问题
Acid rain leads to fish mortality. Many species of fish cannot survive in aquatic environments where the pH is below 5.0. If the water is too acid, the gill systems of many kinds of fish can be damaged.【21】, the acid alters the blood chemistry of all fish. As a result, the fish population in an acidic environment decreases【22】becomes extinct.
Approximately 20 percent of the lakes in Scandinavia are without fish. Moreover, in Nova Scotia the【23】salmon industry may be threatened by the decrease of salmon in rivers and streams. The impact is also【24】in the waters of Ontario and Quebec, where fish populations are【25】the decline.
What potential remedies exist for the acid rain【26】? The experts disagree. Some say new environmental laws should be【27】to control the emission of pollutants in the atmosphere. Some say that if we had known how serious acid rain was, we would have planned【28】to prevent it.【29】, all agree that if the consumption of fossil fuel were reduced, we would have less of a problem. Another【30】is that special scrubbers could be installed in smokestacks to remove a good【31】of the pollutants before they get into the atmosphere. Other ideas even include breeding more【32】fish. And research suggests that spreading lime into lakes may be effective in【33】acidity. In conclusion, it is clear that if we truly want to reduce the impact of acid rain, a【34】of remedies and international cooperation must be explored. It is a sad fact that acid rain probably could have been avoided if we【35】what we know now.
选项
A、combination
B、alliance
C、mixture
D、union
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/T31O777K
0
考博英语
相关试题推荐
Therearegreatcareersinwhichtheincreasingemphasisisonspecialization.Youfindthesecareersinengineering,inproduct
OnesillyquestionIsimplycannottolerateis"Howdoyoufeel?"Usuallythequestionisaskedofamaninaction-amanwalkin
Relentlessrainstriggeredheavyfloodinginnineprovinces,where68personswerekilled.Thegovernmentpledgedrelieffundsof
TheEuropeanUnionrevealedonJanuary23rdhowitplanstosavetheworld.Amammothclimate-changeplanspellsoutindetailh
Thereseemedlittledoubtthatthespreadofaparticularculturaltraitdidfollowaspecificregularpattern______.
Thepossibilitiesofanautumnelectioncannotbe______.
AWorldWithoutBooksorMusicIfbookshadneverbeendiscovered,manwouldhavefoundsomeotherwayofrecordinghiscomm
Thereareanumberofformatsforreportingresearch,suchasarticlestoappearinjournals,reportsaddressedtofundingagenc
PriscillaOuchida’s"energy-efficient"houseturnedouttobeahorribledream.Whensheandherengineerhusbandmarriedafew
A、expectingB、hopingC、wishingD、dreamingB本题考核的知识点是动词。四个词都有“希望“的意思,但其程度及用法不同。A项表示“希望,期待”,后面不用加介词;B项表示“希望”;C项表示“很难达到的希望”;D项表示“梦想
随机试题
7000表示()轴承。
企业营销活动中的道德问题有哪些?
可促进胰岛素分泌的激素有
9岁女性急性风湿热患儿,心尖区出现舒张期隆隆样杂音时可能是
哪项不是引起呕吐的主要原因
A.甘寒凉润B.补气培元C.健脾芳化D.清热利湿E.温补益火体质偏阳者治宜
A.肯定B.很可能C.可能D.可能无关E.待评价根据微观评价方法,不良反应的评价结果有6级,即:肯定、很可能、可能、可能无关、待评价、无法评价。用药及不良反应发生时间顺序合理,停药以后反应停止,或迅速减轻或好转,有文献资料佐证,排除原患疾病等
按照法人的功能、设立方法以及财务来源的不同,可以将法人分为
Theinventionofbothlabor-savingtoolsandtoolsofintelligenceisrarelyaccidental.Instead,itisusuallytheproductofh
Therearefourmainlearningstyles:imaginative,analytic,commonsenseanddynamic.Noneofthesefourstyleswillfitastuden
最新回复
(
0
)