A close examination of most DTDs, however, reveals a fair degree of flexibility-particularly if the DTD is from a generic source or derived from a standard or specification.
然而，对大多数DTD的密切观察就会发现相当程度的灵活性—特别是当这个DTD源于普通资源或者来自一个标准或规范时。
Examine can avoid artificial factor on the net, make examination more fair, reasonable, objective and true, and truly attain a purpose of raising the quality of workers.
网上考试可避免人为因素，使考试更加公平、合理、客观、真实，能真正达到提高职工素质的目的。
The reason is that the principle of fair competition in the imperial examination system has disappeared completely while it is reserved and developed in the British civil-service system.
究其原因是中国科举制中公平竞争原则的完全丧失而文官制吸收了这一原则精华并使之制度化导致。
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