As was already mentioned several times, a module should be easily replaceable. Even if there are several other modules dependent on it, having a clear, public API enables us to replace the module by a new implementation. There are also some other considerations, e.g. related to bootstrapping of the module, but the clear API is by far the most important one.
第一百九十四条 在救助作业中救助人命的救助方，对获救人员不得请求酬金，但是有权从救助船舶或者其他财产、防止或者减少生态环境损害的救助方获得的救助款项中，获得合理的份额。
，详情可参考爱思助手
Что думаешь? Оцени!，推荐阅读电影获取更多信息
Pre-order the MacBook Pro at Amazon。旺商聊官方下载是该领域的重要参考