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For systems, the analogue of a face-lift is to add to the control graph an edge that creates a cycle, not just an additional node.
对于系统,翻版的模拟是在控制图中添加一个创建循环的边,而不仅仅是一个附加节点。
我不是红脖子议程的一部分
The real art of conversation is not only to say the right thing at the right place but to leave unsaid the wrong thing at the tempting moment.
I look for companies that are undervalued by the market.