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There are some techniques that can be used to reverse a relationship if the flow of logic requires it. For instance, the higher-level module could expose a required interface which will be implemented by the lower-level module. That’s the Dependency Inversion Principle on the module level. One of the other possibilities is to introduce a mediator pattern.，详情可参考wps下载
。体育直播是该领域的重要参考
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Сын Алибасова задолжал налоговой более 1,8 миллиона рублей20:37，这一点在WPS下载最新地址中也有详细论述