单选题
_____time,he’llmakeafirst-classtennisplayer.
题目答案
B
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举一反三
Thismissileisdesignedsothatonce_____nothingcanbedonetoretrieveit.
题目答案
A
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Heresented_____towait.Heexpectedtheminister_____himatonce.
题目答案
B
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Henoticedthehelicopterhoveringoverthefield.Thentohisastonishment,hesawaropeladder_____outandthreemenclimbingdownit.
题目答案
B
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Thecountry’schiefexportsarecoal,carsandcottongoods,cars_____themostimportantofthese.
题目答案
C
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_____regulartraininginnursing,shecouldhardlycopewiththeworkatfirst.
题目答案
D
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