To test this simple function, you need to add two more PHP files to the mix.

为了测试这个简单的函数，还需要添加另外两个PHP文件。

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This seems like a simple, reasonable goal. Other issues, however, come into the mix.

这看起来像一个简单而合理的事情，然而其它观点的参杂使其变得更加复杂。

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To do this, they must implement a mix of two relatively simple workflows to form a real-world dynamic workflow.

为此，他们必须将两个相对简单的工作流程合并，来形成一个现实的动态工作流程。

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Often this allocation consists of a simple mix between stocks and bonds, and is then further refined using sub-asset classes such as developed international stocks, emerging markets, Treasury bonds, corporate bonds and so forth.

FORBES: Investment Principle Matters to Principal

This service will recommend a mix of specific portfolios for each individual investor, based on answers to a simple online questionnaire and market patterns O'Shaughnessy has identified.

FORBES: Custom-Made Mutual Funds