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

Cancerissecondonly______heartdiseaseasacauseofdeath.

Nuclearscienceshouldbedevelopedtobenefitthepeople______harmthem.

Anthropologistsbelievethatlaughterdatesbackmillionsofyears—wewerelaughinglongbeforewewereverballycommunicating.

JoeTemplershouldhaveknownbetter;afterall,heworksforalargeautoinsurancecompany.Itwon’thurttoleavethekeyin

Thematterwasfinallysettledunderthetable.

Johnhadbeenworkinghardand______.

A.I’llsurelyrememberyouandyourinvitationtohim.B.Scientistshavedonecountlessexperimentstoshowthatpraiseisfar

Allthewhilehewasterrifiedbythefear______hehadcancerofthestomach.

Shethoughtitwas______nottoknowsomeofthebasicfactsofhercountry.

Itisa______tohearhisspeech.

大学毕业生甲向当地的工商行政管理机关申请设立专门提供中介咨询服务的个人独资企业。根据以下假设的情况分别回答问题：甲向该企业投资的电脑2台自个人独资企业成立后，所有权属于：()

螺旋CT技术中重建间隔的定义，正确的是

麻子仁丸主治()

根据《环境影响评价技术导则一生态影响》，生态影响防护与恢复的措施应按照（）的次序提出。

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Itisself-evidentthattheeducationoftheyoungisvitaltothefutureofacountry.

A、Itisquiteunexpected.B、Shehasalreadygotthenews.C、Shehasconfidenceintheman.D、Itisnotexcitingtolearnabouti

A、Recordcompaniesshouldpayattentionnottooffendpeople.B、Recordcompaniesshouldbeverycarefulwiththeiremployees.C、