单选题：Howdidtheauthorsdotheresearch?

题目分类：英语四级
题目类型：单选题
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题目内容：

Howdidtheauthorsdotheresearch? A．TheylookedatthedatafromSwiss.
B．Theycheckedallthebehaviorsofthetwins.
C．Theyexaminedtheinvestmentbehavioroftwins.
D．Theyinvestigatedlessthan2,000pairsoftwins.

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答案解析：

Nowadays,peoplegenerallyconsiderfemalesshoulddobabysitting.

分类：英语四级题型：单选题

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Manynewly-establishedsitesdonotwanttospendmuchtimeonpassword

Manynewly-establishedsitesdonotwanttospendmuchtimeonpasswordsecurity.

分类：英语四级题型：单选题

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Danishresearchersfoundthatthemorepollenintheair,themoresuici

Danishresearchersfoundthatthemorepollenintheair,themoresuicideshappen.

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Peopleinthepresentsocietyarelikelytolookdownuponawomanwholiv

Peopleinthepresentsocietyarelikelytolookdownuponawomanwholiveswithamanbeforethe

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Expertssuggestpeoplewhotrytofallasleepintheweehoursshouldn't

Expertssuggestpeoplewhotrytofallasleepintheweehoursshouldn'ttrytofigureoutwhatt

分类：英语四级题型：单选题

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