The National Institute of Mental Health is conducting______research to determine the psychological effects of using drugs.

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问题 The National Institute of Mental Health is conducting______research to determine the psychological effects of using drugs.

选项 A、extensive
B、refined
C、prevalent
D、out-going

答案A

解析四个选项的意思分别是：extensive广泛的；refined提炼的；prevalent普遍的，流行的；out-going友好的。句意是，国家心理健康研究所正展开广泛的研究，以确定使用毒品对人的心理方面的影响。所以正确答案是A选项，如：They own extensive land by the ocean．(他们拥有海边的辽阔土地)。

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The National Institute of Mental Health is conducting______research to determine the psychological effects of using drugs.

考博英语

Asanimportantmeansforpreservingknowledge,variousliteratureshavebecomepreciousresourcesforthemankind,whichhaveg

He______somuchworkthathecouldn’treallydoitefficiently.

Billcouldn’t______ananswerwhentileteacheraskedhimwhyhewaslate.

BecauseofherdualnationalityintheUnitedStatesandMexico,Mariawasalmostrequiredtopaytaxesinbothcountriesuntil

"RefrigeratorproductioninChinajumpedfrom1.4millionunitsin1985to10.6millionin1998,"accordingtoDavidFridley,a

Wheneveryouseeanoldfilm,evenonemadeaslittleastenyearsago,youcannothelpbeingstruckbytheappearanceofthewo

Timeforanotherglobal-competitivenessalert.IntheThirdInternationalMathematicsandScienceStudy—whichlastyeartesteda

InthedaysimmediatelyfollowinghurricaneAndrew’sdeadlyvisittoSouthFlorida,AllstateInsurancehastilydispatchedmoret

Wolvesaresaidtohowlatthemoonwhenitis______.

Thecompanydirectorsaskedthegovernmentto______inthedisputeandpreventastrike.

哮喘持续状态合并混合性酸中毒时，首要处理为

某县人民法院受理一起伤害案，审判长系被害人的姐夫。一审判决后，被告人不服，提起上诉。二审人民法院认为原审法院的审判长应回避，此时应如何处理?

双液法化学堵水时，每次挤注堵剂量不超过3m3，隔离液为()。

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软盘携带和保管都较为方便，读写速度比较快，能存储大量数据，因此是必需的设备。()

设立管理公开募集基金的基金管理公司，其注册资本不低于()亿元人民币，且必须为实缴货币资本。

物流标准化是我国物流企业进军国际物流市场的______。

Therewas(apauseof)completestillness(which)the(buzzingof)thebeesamongthepinkrosessounded(asloudas)thefight