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【单选题】


A、nEw tEChniquE ______, thE output As A wholE inCrEAsED By 20 pErCEnt.
A、working out B、hAving workED out
C、to hAvE BEEn workED out
D、hAving BEEn workED out

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根据网考网移动考试中心的统计，该试题：

14%的考友选择了A选项

1%的考友选择了B选项

12%的考友选择了C选项

73%的考友选择了D选项

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