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With Tom's help,I finially___the cost of the company in the first phase ans decide

A.worked on

B.worked up

C.worked off

D.worked out

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D解析:在汤姆的帮助下,我最终确定了公司第一阶段的成本,并决定我们不能再投资了。A、 工作B、 激动的C、 工作结束D、 算出

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