试题与答案

一项工程,需要在规定日期内完成,如果甲队独做,恰好如期完成,如果乙队独做,就要超

题型:解答题

题目:

一项工程,需要在规定日期内完成,如果甲队独做,恰好如期完成,如果乙队独做,就要超过规定3天,现在由甲、乙两队合作2天,剩下的由乙队独做,也刚好在规定日期内完成,问规定日期是几天?

答案:

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The Internet is a (66) network of networks which interconnects (67) ranging from the simplest personal computers to the most sophisticated mainframes and supercomputers. This network of networks is used for an extraordinary range of purposes long distance collaborations, retrieving free software and documents, (68) library catalogs, (69) in to supercomputers - the list of current Internet activities and (70) is large and the range of possible future applications is as unlimited as our imagination.

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