______ some mammals came to live in the sea is now known.

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问题 ______ some mammals came to live in the sea is now known.

选项 A、Which
B、Since
C、Although
D、How

答案D

解析本题考查的是语法中主语从句的用法。此处关系副词how引导的句子作整个句子的主语，故选项D)为正确答案。本句意为“有些哺乳动物是如何转而生活在海洋里已经为人们所知”。

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成人本科学位英语

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______ some mammals came to live in the sea is now known.

成人本科学位英语

Teachersneedtobeawareoftheemotional,intellectual,andphysicalchangesthatyoungadultsexperience.Andtheyalsoneed

ItseemstomethattheAmericansareahighly______people.Mostofthemliketotravelwhenevertheygetthechance.

SpeakerA:CanIopenacheckingaccounthere?SpeakerB:_____

Man:I’mfrustrated.We’resupposedtodoourassignmentonthecomputer,butIhavedifficultygettingaccesstothecomputers

Conventionalwisdomhasitthatconcernfortheenvironmentisaluxuryonlytherichworldcanafford;thatonlypeoplewhoseb

ThecurrentemergencyinMexicoCitythathastakenoverourlivesisnothingIcouldeverhaveimaginedformeormychildren.

Lifereallyshouldbeonelongjourneyofjoyforchildrenbornwithaworldofwealthattheirfeet.Internationallyfamous

Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirworktheymustreadletters,reports,tradepublication

Tousitseemssonaturaltoputupanumbrellatokeepthewateroffwhenitrains.Butactuallytheumbrellawasnotinvented

Skatingcanbegoodforyou______correctly.

氯丙嗪翻转肾上腺素升压作用是由于

较重的肠梗阻的全身变化不包括

外毒素可分为

对流动人口中的传染性非典型肺炎患者。疑似患者处理的原则是

在股份有限公司，核算股东投入企业的资本，应设置的账户是()。

孙婆婆的老伴三年前去世，由于行动不便无人照顾，她只能搬来与儿子同住。但是三年来，儿子和媳妇总把孙婆婆锁在屋里，不允许她出门半步。在老年社会工作中，孙婆婆儿子和媳妇的这种行为属于()。

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