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 ran leads to fish mortality. Many species of fish cannot survive in aquatic environments there the pH is below 5.0. If the
Acid ran leads to fish mortality. Many species of fish cannot survive in aquatic environments there the pH is below 5.0. If the
admin
2013-01-12
29
问题
Acid ran leads to fish mortality. Many species of fish cannot survive in aquatic environments there the pH is below 5.0. If the water is too acid, the gill .systems of many kinds of fish can be damaged. 【C1】______ , the acid alters the blood chemistry of all fish. As a result, the fish population in an acidic environment decreases 【C2】______ becomes extinct. Approximately 20 percent of the lakes in Scandinavia are without fish. Moreover, in Nova Scotia the 【C3】______ salmon industry may be threatened by the decrease of salmon in rivers and streams. The impact is also 【C4】______ in the waters of Ontario and Quebec, where fish populations are 【C5】______ the decline.
What potential remedies exist for the acid rain 【C6】______? The experts disagree. Some say new environmental laws should be 【C7】______ 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 【C8】______ to prevent it. 【C9】______, all agree that if the consumption of fossil fuel were reduced, we would have less of a problem. Another 【C10】______ is that special scrubbers could be installed in smokestacks to remove a good 【C11】______ of the pollutants before they get into the atmosphere. Other ideas even include breeding more 【C12】______ fish. And research suggests that spreading lime into lakes may be effective in 【C13】______ acidity. In conclusion, it is clear that if we truly want to reduce the impact of acid rain, a 【C14】______ of remedies and international cooperation must be explored. It is a sad fact that acid rain probably could have been avoided if we 【C15】______ what we know now.
【C2】______
选项
A、and
B、then
C、hence
D、or
答案
D
解析
句子由状语结构As a result修饰,认定主句描述的是一种结果,而不是一个过程。 or表示两种可能性,符合结果性的描述,为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/Mu9O777K
0
考博英语
相关试题推荐
Becauseheis______,wecannotpredictwhatcoursehewillfollowatanymoment.
Inoursocietytherazorofnecessitycutsclose.Youmustmakeabucktosurvivetheday.Youmustworktomakeabuck.Thejob
Inoursocietytherazorofnecessitycutsclose.Youmustmakeabucktosurvivetheday.Youmustworktomakeabuck.Thejob
Themassacreofinnocentpeoplecannoteverbecondoned.
Themagnitudeoftheproblemofdisappearingspecies,viewedworldwide,dwarfsresourcescurrentlyavailabletoaddressit.Byt
(Despite)thissimilaritywith(other)creatures,theevolutionofhumankinddiffersfrom(otherspecies)in(one)importantand
随机试题
按冲砂液循环方式的不同,可将冲砂方法分为正冲、反冲两种。()
抗甲状腺药物主要的不良反应是()。
2011年3月2日,A公司与B公司签订了一份标的为100万元的设备买卖合同。该合同约定:A公司于3月3日向B公司支付15万元作为预付款;B公司于3月10日交付设备;A公司于B公司交付设备之日起3日内付清货款。2011年3月3日,A公司按合同约定向B公司签发
公募证券是指向社会公众投资者公开发行的证券,其审批制度比较(),并应采取公示制度。
中国共产党和民主党派团结协商的基本方针是()。
蝴蝶:蟋蟀
读书有益生活,读书有益人生,读书有益社会,是自古至今东西方文化都笃信的一个神圣信条。但读书在今天却面临着诸多_____,“开卷有益”面临着_____的深刻质疑。填入画横线部分最恰当的一项是:
以下关于Windows2003用户管理的描述中,哪项是错误的?——
有如下类定义:classCup{public:voidSetPrice(doubleval=5.8);doubleGetPrice(){returnprice;
Dueto______researchwhichhadtakenyearstocomplete,thescientistproudlypresentedherfindingsatthenationalconventio
最新回复
(
0
)