The word "it" in line 3 refers to What does the author say in paragraph 1 regarding most species in Earth’s history

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问题 The word "it" in line 3 refers to
What does the author say in paragraph 1 regarding most species in Earth’s history

选项 A、They have remained basically unchanged from their original forms.
B、They have been able to adapt to ecological changes.
C、They have caused rapid change in the environment.
D、They are no longer in existence.

答案D

解析

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托福（TOEFL）

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The word "it" in line 3 refers to What does the author say in paragraph 1 regarding most species in Earth’s history

托福（TOEFL）

ReadthepassagebelowandanswerQuestions28-40.TheHistoryofEarlyCinemaThehistoryofthecinemain

ReadthepassagebelowandanswerQuestions28-40.TheHistoryofEarlyCinemaThehistoryofthecinemain

InparagraphE,thewritersuggeststhatsomemuseumexhibits

InParagraphG,thewritersuggeststhatanimportantfeatureofAboriginalartis

ReadingPassage1hasnineparagraphslabelledA-I.Whichparagraphcontainsthefollowinginformation?Writethecorrectletter

MeasurestocombatinfectiousdiseaseintsaristRussiaAInthesecondhalfoftheseventeenthcentury,Russianauthoritiesbeg

MeasurestocombatinfectiousdiseaseintsaristRussiaAInthesecondhalfoftheseventeenthcentury,Russianauthoritiesbeg

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铁路工程初测阶段对于构造复杂的地区，其工程地质调绘应用()，查明地质构造特征、性质、延伸方向。

RobertMoody,52,isanexperiencedpoliceofficer.Muchofhisworkinvolvesdealingwith【16】andgang(团伙)problemsintheschoo

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NOVELL NETWARE是( )操作系统。

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