But from the start of their experiments, the Wright brothers found that they needed money to pay_____their research.

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问题 But from the start of their experiments, the Wright brothers found that they needed money to pay_____their research.

选项 A、back
B、down
C、for
D、off

答案C

解析 pay for付款；pay off偿清。根据题意选C。pay不与其他两项搭配使用。

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成人本科学位英语

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But from the start of their experiments, the Wright brothers found that they needed money to pay_____their research.

成人本科学位英语

TheEnglishweatherdefiesforecastandhenceisasourceofinterestand______toeveryone.

Atfirst,the______ofcolorpicturesoveralongdistanceseemedimpossible,but,withpainstakingeffortsandatgreatexpenses

BecauseJackwas______ofthenewlimit,hewasstoppedandwarnedforspeeding.

Thereason______Icamelateforthemeetingwasbecausemycarbrokedown.

SpeakerA:Mr.Carson,Dr.Brownwillhavetochangeyourappointmenttotomorrowatthesametime.He’sstillwaitingforafli

Despiteacoolingoftheeconomy,hightechnologycompaniesarestillcryingoutforskilledworkers.TheInformationTechnology

Insomeways,theUnitedStateshasmadespectacularprogress.Firesnolongerdestroy18000buildingsastheydidintheGreat

They(aregoingto)(have)theservicemen(installed)anelectricfan(in)theofficetomorrow.

Ifyoudon’tputthecheeseintherefrigerator,itmay______.

A、 B、 C、 A题干问的是时间。B项回答的是方位，一般回答Where引导的特殊疑问句。C项汽车发生故障与题意关联不大。只有A项最符合题意。故选A。

缇萦救父：孝

那位年轻女士太激动，以至情不自禁地提起了婚姻话题。

血吸虫虫卵引起的病变主要发生在()。

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Theanswerswereso______thatitwasimpossibletobecompletelyunderstoodbythestudents.