Why didn’t people begin to use unmanned vehicles in undersea exploration until recently? It is because of the ______. What doe

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问题 Why didn’t people begin to use unmanned vehicles in undersea exploration until recently?
It is because of the ______.

What does the author mean by saying "more challenging" in the last paragraph?

选项

答案More demanding

解析

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本试题收录于：大学英语三级B级题库大学英语三级分类

大学英语三级B级

大学英语三级

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Why didn’t people begin to use unmanned vehicles in undersea exploration until recently? It is because of the ______. What doe

大学英语三级B级

大学英语三级

BobandAnniehadnotknowneachotherlongbeforetheybecameeagertogetmarried:BobbecausehewantedAnnieandshe(though

Whatshouldbethebesttitleforthepassage?WhichofthefollowingstatementsisNOTtrueaccordingtothepassage?______

Theystopped______(talk),becausetheteachercamein.

Thewine______alittlebitterthistime.

IfyouconcentrateallyoureffortsonthestudyofEnglish,youwillsurelymasterthelanguagewell.

A、Inashop.B、Atalibrary.C、Atabookstore.D、Atabusstation.B

Insteadof(wait)______fortheteachertoexplain,theytriedtofindthesolutionbythemselves.

Wherewillthenationalconventionbehold?In______.What’sthethemeofthisyear’sconvention?______.

Hewhohasnevertastedwhatisbitterandtoughdoesnotknowwhatissweetandsmooth．

下列各项中。属于社会主义国民收入再分配途径的有()。

Thefactthatsomethingischeapdoesn’t______meanitisoflowquality.

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目前钢结构最常用的两种连接形式是()。

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供给侧改革

Wherewillthenationalconventionbehold?In.What’sthethemeofthisyear’sconvention?.