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【单选题】
下面关于串行化的说法中正确的是( )。Ⅰ：对象串行化机制需要将对象的状态保存到文件中，而后能够通过读入对象状态来重新构造对象，恢复程序状态。Ⅱ：通过让类实现java.io.Serializable接口可以将类串行化。这个接口是一个制造者(marker)接口。也就是说，对于要实现它的类来说，该接口不需要实现任何方法。Ⅲ：提供从输入流中读出对象方法的主要类有ObjectInputStream，提供将对象写入输出流方法的主要类有ObjectOutputStream。Ⅳ：提供从输入流中读出对象方法的主要类有ObjectOutputStream，提供将对象写入输出流方法的主要类有ObjectInputStream。A.
Ⅱ、Ⅲ
B.
Ⅱ、Ⅳ
C.
Ⅰ、Ⅱ、Ⅲ
D.
Ⅰ、Ⅱ、Ⅳ
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举一反三
【判断题】The relevant published literature offers a comprehensive review of the subject of mine fires and explosions.
A.
正确
B.
错误
【判断题】A review engagement differs to an external audit in that the procedures undertaken are not nearly as comprehensive as those in an audit, with procedures such as analytical review and enquiry used exte...
A.
正确
B.
错误
【单选题】According to a comprehensive review of the leadership literature, what is the most important trait of effective leaders?
A.
conscientiousness
B.
openness
C.
extraversion
D.
agreeableness
【单选题】181 The comprehensive review of a contractor's technical performance, cost performance, and delivery schedule, is referred to as:
A.
post project evaluation
B.
post contract evaluation
C.
post mortem
D.
procurement performance evaluation
E.
contractor's performance evaluation
【单选题】The most important difference between a comprehensive review and an elementary review is _____.
A.
the number of words
B.
a systematic critique of the book
C.
the publication information
D.
the summary
【简答题】已知某电路的电压放大倍数 ,则该放大电路的中频电压增益20lg 为( )dB。
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