Ways of making less noise are now being tested.There are even laws controlling noise.We cannot return to the “good old days” of peace and quiet.But we can reduce noise – if we shout loudly enough about it.(本题分数:10 分.) (1).Why are scientists surprised by the findings in ...
Generatingmechanismsofnoiseinmineventilationsystemandcontrollingwaysof thenoise 矿井通风系统噪声产生的机理及噪声控制途径 www.ilib.cn 8. Up-floatControllingWaysofUnderwaterLinkedReinforcingSpecial SteelCage 水下灌注桩非通长筋浮笼控制的方法 www.ilib.cn ...
The scope of the gases emitted from the vehicular emissions on the road and the cruise ship emissions on the sea differs hugely, leading to the pollution of immense proportions in the marine areas. Similarly, recent research also found that the air on the aft areas of cruise ships, particulat...
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Felix said, “The answer to controlling global(全球的) warming is trees—lots of trees!” 1.The companies resell the unwanted gifts . A. to make the unwanted gifts useful B. to help people learn to think carefully C. to save money from it D. to make money for themselves. 2.The ...
Inthisparagraph,theopeningsentenceraisesthequestionofwhytheNormanConquestdidnot,asmighthavebeenexpected,makeEnglandaFrench-speakingcountry.ThissentencestatesaneffectorresultoftheConquest.Thesentencesthatfollowdevelopthecontrollingideabyexplainingthecauses.Intheseyears,therecordcompanieshavebeencompetingtobringoutthelatest...