题目内容

以静态或动态的连接方式，为应用程序提供一组可使用的类。(15)除了提供可被应用程序调用的类以外，还基本实现了一个可执行的架构。

A. 函数库
B. 类库
C. 框架
D. 类属

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He______English for eight years by the time he graduates from the university next year.

A. will learn
B. will be learning
C. will have learnt
D. will have been learnt

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