The clerk can then use his sense of hearing to monitor the success of his inputs______he keeps his eyes on the document.

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问题 The clerk can then use his sense of hearing to monitor the success of his inputs______he keeps his eyes on the document.

选项 A、until
B、since
C、while
D、during

答案C

解析

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专业英语四级

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The clerk can then use his sense of hearing to monitor the success of his inputs______he keeps his eyes on the document.

专业英语四级

Theman______heranswerwithouttheslightestclueastowhatshewouldsay.

Whydoadultsbelievethatalcoholicawarenessprogramsteachyoungpeoplenottoover-drink?Recently,readinganarticleabout

Moreandmoreresidences,businesses,andevengovernmentagenciesareusingtelephoneansweringmachinestotakemessagesorgi

Aleadingclimatechangescientistsaysthewarmingoftheplanetwouldhaveadevastatingimpactonthepoorandthehungry.Th

Aleadingclimatechangescientistsaysthewarmingoftheplanetwouldhaveadevastatingimpactonthepoorandthehungry.Th

Somanystudents______theteacherthrewthetextbookinafitofanger.

Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecauseofraysfromthesunandotherstars.Theatmospher

Aconventionalteacher’slicenseusuallyrequiresauniversitydegreeineducationplusanunpaidtermofpracticeteaching.Thi

TodayisamajormilestoneforMicrosoftasourfirstDevelopersConferencehereinChina.Thekeypartnershipswebuildwithso

Itworriedtheparents______theirbabywasbadlyill.

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28岁，孕34周，10天前开始感觉乏力，食欲差，近5天病情加重，伴呕吐，巩膜发黄，神志欠消而入院，血压135／90mmHg，ALT35U／L，胆红素176μmol／L，尿蛋白(-)。最佳诊断是

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