PASSAGE ONE According to the scientists, what causes the common occurrence of rickets among children?

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问题 PASSAGE ONE
According to the scientists, what causes the common occurrence of rickets among children?

选项

答案In sufficent exposure to natural sunshine and improper diet.

解析第二段中提到：The disease is caused by chronic vitamin D deficiencies，which carl be triggered by long periods out of natural sunlight and a poor diet. 可见长时间日照不足、饮食不合理，会造成长期的维生素D缺乏，从而诱发佝偻病。

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专业英语四级

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PASSAGE ONE According to the scientists, what causes the common occurrence of rickets among children?

专业英语四级

Storiespeoplehavewithreadingarenotnew,butthetrendisworsening.Recently,arecordhasshownthat10percentofthefr

OnSundaystherearealotofchildrenplayinginthepark,______parentsseatedtogetherjoking.

ItisabsolutelyessentialthatWilliam______hisstudyinspiteofsomelearningdifficulties.

A、It’sveryboring.B、Hecanconnectitwiththeworkhehasdone.C、Therearefewthingsthatwedon’tknowaboutbananas.D、Al

We’dliketoawardscholarshipstothosewhosparenoeffortandmakegreatimprovementinstudytoshowour______fortheirhard

Italianfootballteamwasina_____corner:itlookedasthoughitwasgoingtolosethegarni

PASSAGETWOWhatisthemeaningofthesentence"...thereisnoroadintheEnglish-speakingworldmoresteepedinstories"in

A、Sheisprobablytheman’sgirlfriend.B、Shewashardtogetonwithlastnight.C、Sheisgoingonadatewiththeman.D、Shei

(1)FindingNemomayhaveleftlocaltheatres,butinthesouthernsea,alegionofbrightly-colouredanemonefishonlyrecently

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为减轻肾小球的高灌注、高滤过、高压状态，其饮食疗法应选择

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下列图中，哪个是长江海事局2018年5月签发的各类海船船员证书结构示意图？（）

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Advertisingispaid,nonpersonalcommunicationthatisdesignedtocommunicateinacreativemanner,throughtheuseofmassor

A、Itisnotstable.B、Shemeetstoomanypeople.C、Shehatestobealawyer.D、Ithaslongworkinghours.D对话中男士说他听说女士要辞职，女士说是的，

A、Adriver’slicense.B、Apassport.C、Aninternationalcreditcard.D、Adeposit.B

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