单项选择题X 纠错
A.invented B.discovered C.found D.developed
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单项选择题
A.forward B.off C.with D.on
A.take in B.take out C.take up D.take over
A.However B.Otherwise C.Nevertheless D.Moreover
A.whole B.the whole C.all of D.all
A.took B.had C.played D.made
A.asked after B.asked for C.asked to D.asked with
A.by B.on C.with D.–(不填)
A.at B.in C.on D.to
A.to work B.work C.working D.worked
A.carry out B.carry on C.carry though D.carry forward
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