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Suppose that I walk into a new deli expecting to get a sandwich with roast beef, but that when I place my order, the person working the counter says that they don't have roast beef. If I were to relay this little disappointment to my friends, I might say, "You know that new deli on Fifth St.? It turns out they don't even have roast beef!"
11:22, 5 марта 2026МирЭксклюзив，详情可参考爱思助手下载最新版本
# actually changed.
，这一点在体育直播中也有详细论述
In Modular Design higher-level modules shouldn’t depend on lower-level modules. That’s because abstract modules shouldn’t be limited by concrete solutions. Another reason is testability - modules that have direct dependencies to lower-level modules are harder to test.
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