What is the passage mainly about? According to the US National Heart, Lung and Blood Institute, the reason why older mothers’ c

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问题 What is the passage mainly about?
According to the US National Heart, Lung and Blood Institute, the reason why older mothers’ children tend to be obese remains ______ .

选项

答案not entirely clear

解析根据题干中的US National Heart，Lung and Blood Institute定位至第六个小标题下第二段，再根据题干其他信息the reason why older mothers’ children tend to be obese remains，准确定位至该段最后一句：why this should be so is not entirely clear，remains与is的语法功能及意思一致，因此可填入not entirely clear。

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大学英语六级

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What is the passage mainly about? According to the US National Heart, Lung and Blood Institute, the reason why older mothers’ c

大学英语六级

A.BusinessmanagerYouwillberesponsibleforourglobalbusinesswithinspecificcountriesandwillhaveagoodunderstan

Thebusinesscycleiscomposedofmanyphasesandoneofthemistheexpansionphase.Thisphaseisatwo-foldone,includingre

Thispartistotestyourabilitytodopracticalwriting.Youarerequiredtowriteanoticeaccordingtotheinformationgiven

Greenpeaceisaninternational(organize)______thatworkstoprotecttheenvironment.

Iftherentisasmuchas$750amonth,water,gasandelectricityshould(include)______.

Manycountriesfaceasomewhatmoreseriouseconomicproblemsintheformofanunfavorabletradebalance(贸易逆差)withothernati

A—proofofdeathH—releasecertificateB—bodilyharmI—copyrightlawC—keywitnessJ—sumofclaimD—rightofauthorK—housearre

Whichdoyouthinkis______important,healthorwealth?

Scientistsfindthathard-workingpeoplelivemuchlongerthanaveragemenandwomen.Careerwomenarehealthierthanhousewives

Alargenumberofcompanieswentbankruptlastyear，mainlyduetotheterribleeconomicconditionsandtheirpoormarketingstra

Theflowersandtreesinthegardenlookedasifthey________foralongtime.

计算。

A、中央前回B、锥体外系统C、小脑D、枕叶E、颞叶癫痫的复杂部分性发作的病损在

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A、Theyaremeanttocleanuptownsandcities.B、Theyaremeanttotackleblackmarkettrading.C、Theyaremeanttopunishurban

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