The passage focuses on . By immersing ore particles in water, .

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问题 The passage focuses on ______.
By immersing ore particles in water, ______.

选项 A、we can get ore particles of equal size
B、we can purify aluminum particles
C、we can filter out aluminum
D、we can improve the working conditions around

答案C

解析本题的依据是最后一句It is hoped that this technique will reduce the amount of high-grade aluminum the United States must import．显然，把矿粒浸入水中的做法目的只有一个，即提取铝。

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本试题收录于： GCT工程硕士（英语）题库专业硕士分类

GCT工程硕士（英语）

专业硕士

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The passage focuses on ______. By immersing ore particles in water, ______.

GCT工程硕士（英语）

专业硕士

Ihatepeoplewho______theendofafilmthatyouhaven’tseenbefore.

The"madmoments"inthefirstparagraphreferstothetimewhenwe______.Inthispassage,theauthormainlytellsus______.

A、contractorganizationsB、realestatecompaniesC、individualpersonsD、specialconstructioncompaniesD广告第一栏说明的业务对象中提到了A，B，C，没有

We’llalltakeavacationinthemountainsassoonasIfinishworking______myproject.

Daughter(inthekitchen):ShallIturnontheburner?Mother:______.Ihaven’tfinishedpeelingthepotatoes.

Ipromisedtolook______thematterassoonasIgotthere.

______,followthedirectionsonthebottlecarefully.

Guest:I’dlikearoomwithanoceanview,please.Clerk:I’msorry.______.

SpeakerA:Well,I’mreallygladItalkedtoDougabouttheproblemIwashavingwithmygirlfriend.Hegavemesomeexcellenta

Idon’tknowhisaddress,______.

绿色电脑是指()电脑。

在各种会计核算形式中，共同的账务处理程序是()。

排列图中的C类因素是在()间的因素。

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Turningoilrigsintoreefssavesmoneyandmarinelife.Yetmanygreensopposeit.Whenanoffshorewellstopsproducingoil

ShoppinghabitsintheUnitedStateshavechangedgreatlyinthelastquarterofthe20thcentury.【C1】______inthe1900smos

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The passage focuses on . By immersing ore particles in water, .

The"madmoments"inthefirstparagraphreferstothetimewhenwe.Inthispassage,theauthormainlytellsus.