How many more decades will have to pass______ scientists succeed in providing a cure for cancer?

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问题 How many more decades will have to pass______ scientists succeed in providing a cure for cancer?

选项 A、when
B、since
C、before
D、until

答案C

解析 before常可用于将来时态，表示“才；就”，如：It will be several weeksbefore you are used to the new life in college．几个星期后你就会适应大学里的新生活了。 A．when一般不与将来时态连用；B．since常与现在完成时连用；D.until直到，用在此处意义不符。

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本试题收录于：英语题库普高专升本分类

英语

普高专升本

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How many more decades will have to pass______ scientists succeed in providing a cure for cancer?

英语

普高专升本

Herearesomesuggestionsthatprovehelpfulforthosewhoarepreparingforajobinterview.Insomeway,a(n)【B1】______intervi

Shoppingforclothesisnotthe【C1】______experienceforamanasitisforawoman.Amangoesshoppingbecauseheneedssomethi

Itisreportedthatmanyautomobileaccidents______carelessdriving.

Bynowyouknowthat【C1】______yourmoney’sworthisnotjustamatterofluck.Itismoreoftenthe【C2】______ofbuyingskill【C

Televisionhasbecomeamajorinstrumentofcommunication,______ustoseeaswellastohearallkindsofprogrammes.

Cancerissecondonly______heartdiseaseasacauseofdeath.

Thereareagreatmanycareersinwhichtheincreasingemphasisisonspecialization.Youfindthesecareersinengineering,in

Thepictureexhibitionboredmetodeath.IwishI______toit

AsfortheFlatEarththeory,IbelieveIcan______itwithmyownexperiencesofnavigation.

TomarrivedatthebusstationquiteearlyforParisbus.ThebusforPariswouldnotleaveuntilfivetotwelve.Hesawaloto

从主体与对象世界的关系来看，意象可以区分为

简述恶性肿瘤发病的年龄特点。

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患儿女，10个月。腹泻5天入院。每日大便10余次，黄色蛋花汤样，水分多，伴有呕吐、尿少、轻咳。体检：T38．2℃，前囟、眼窝凹陷，皮肤弹性差，四肢稍凉。血白细胞7．5×109／L，血Na+125mmol／L，K+3．7mmot／L，BE﹣16mmol／

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Readthearticlebelowabouttheimportanceofthedivisionoflabour.Choosethebestwordorphrasetofilleachgapfrom

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Bynowyouknowthat【C1】yourmoney’sworthisnotjustamatterofluck.Itismoreoftenthe【C2】ofbuyingskill【C