______much is known about what occurs during sleep, the precise function of slee

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问题 ______much is known about what occurs during sleep, the precise function of sleep and its different stages remains largely in the realm of assumption.

选项 A、Because
B、For
C、Since
D、While

答案 D

解析本题考查连词。分析题干可知，前后两个句子属于转折关系，而非因果关系。[A]、[B]、[C]均表示因果关系，只有[D]While可以表示转折关系，意为“虽然”，故为答案。

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______much is known about what occurs during sleep, the precise function of slee

Wecannotmakeaprecisecalculationofthepriceuntilwehaveallthecosts.T

Thefunctionofthesentence"Aniceday,isn’tit?"is______.A、informativeB、ph

Whetherwehelphimornot,hewillsucceed.Theitalicizedpartfunctionsasa(

"HowdoyougetoutofanIcelandicforest?Youstandup."Duringfiveday

"HowdoyougetoutofanIcelandicforest?Youstandup."Duringfiveday

Duringthemedievaltimes,ifonemancoveredinarmorextendedanopenhandto

Whichoftheitalicizedpartsfunctionsasacomplement?A、Ifeltmyhandstrembl

Whatisthesituationofyourbrainduringthesleepbeforeanexam?[br][orig

DuringmyfirstsevensemestersasamedicalstudentatGadjahMadaUniversi

DuringmyfirstsevensemestersasamedicalstudentatGadjahMadaUniversi

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[originaltext]M:MissEllenChan?Goodtoseeyou.Thankyouforcoininginto

Whenthemeetingisover,westillhaven’tdecided______(谁应为此负责).whoshouldb

TheGenuineArticleAManybusinessbooksassumeth

在1971年第26届联合国大会上，中华人民共和国在外交上获得划时代的胜利。主要表

周先生，45岁，企业主管，身高175cm，体重95kg，血压135/85mmHg

下列关于货币型理财产品的表述，错误的是（ ）。A.投资期短，资金赎回灵活 B.

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