D — A digit (from 0 to 9).

d—数字(0到9)。

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Then the method has been used in a case study to evaluate the R&D' s competitive advantage of leading 9 universities.

然后通过对9所重点高校科研竞争力的实例测算，说明了该方法的实际效用。

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NIU Y, DAI G, MU D, et al. Design and implementation of selfadaptation scheduling algorithm for open realtime system[J]. Computer Science, 2008,35(9):59-61.

（牛云，戴冠中， 慕德俊，等。基于反馈控制的开放式实时系统自适调度算法设计与实现[J]。计算机科学，2008， 35（9）：59-61。

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The number of 3-D-ready screens tripled in 2009 to 9, 000.

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Syracuse (30-9) has taken its trademark D to new levels of stinginess in the NCAA tournament.

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Later this year, they plan to roll out a 9-screen, 3-D cinema and 1, 000 square meter coliseum.

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