There are several theories as to why the dinosaurs become ______.

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问题 There are several theories as to why the dinosaurs become ______.

选项 A、extinct
B、credible
C、distinct
D、esthetic

答案A

解析形容词辨义。这四个选项都是形容词，extinct表示“熄灭的，灭绝的，耗尽的”；credible表示“可信的；可靠的”；distinct意指“(常与from连用)不同的；分别的；独特的”，如：Keep the two ideas distinct．(将这两个观念分开来。)esthetic表示“感觉的”。根据句意，恐龙是一种已经灭绝的动物，所以A)项符合。

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大学英语六级

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There are several theories as to why the dinosaurs become ______.

大学英语六级

Asmallpieceoffish’eachdaymaykeeptheheartdoctoroff.That’sthefindingofanextensivestudyofDutchmeninwhichd

Inallone’slifetimeitisoneselfthatonespendsthemosttimebeingwithordealingwith.Butitis【C1】______oneselfthato

A、Sheisdeterminednottogetinvolvedasothers.B、Sheisworriedmoreaboutherstudythananythingelse.C、Sheisalittlea

A、Thistechnologycancureallthediseasescausedbygenes.B、Thistechnologycannotleadtoacureforcancer.C、Thistechnol

Respectbeginswithintheindividual.Theoriginalstateofrespectis【B1】______onawarenessoftheselfasauniquebeing.The

Inrecentyearsthepotentialofinformationtechnologytoenhanceteachingandlearninghasbeendemonstratedinvirtuallyever

Forcenturies,explorershaveriskedtheirlivesventuringintotheunknownforreasonsthatweretovaryingdegreeseconomican

Changingfromsolidtoliquid,watertakesinheatfromallsubstancesnearit,andthis______producesartificialcoldsurroun

Thereisanobviouspreferenceoftheguestteaminhis_________onthatfootballmatch.

Severalfootballsupporterswere______fromItalyduringtheWorldCup.

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判断建筑物经济寿命,不用考虑其市场状况和经营收益状况。()

价值工程活动程序中的基本步骤是()。

《污水综合排放标准》中规定，第一类污染物采样时，应在()排放口采样。

少儿的肌肉活动相较于成人表现为易疲劳，而疲劳的恢复()。

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"Successfulcloningofanincreasingnumberofspeciesconfirmsthegeneralimpressionthatitwouldbepossibletocloneanyma