As an alternate application course, its language literature in average college is different from on curricular setting is professional.

作为一门交叉应用型学科，它在课程设置上不同于一般大学中的语言文学专业。

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The singleton pattern ensures that only a single instance of a class is normally used by an application, but still allows alternate instances to be created as required.

单元素模式可以确保应用程序通常只使用类的单个实例，但是仍然允许根据需要创建备用实例。

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Over the years, dissatisfied hackers have created alternate ways to bridge this gap between Web servers and application code.

这些年来，不满的黑客已经创造了多种替代方式来在Web服务器和应用程序代码之间架起桥梁。

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