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不用太着急的。For interface programming, a lot of changes that may occur in the system in the future can be isolated. Why? If the code is written for an interface, he can implement the interface with any new class through polymorphism. However, when the code uses a large number of specific classes, once new specific classes are added, the code must be changed. Violating the opening and closing principle./shindig (Carnival)I am an ordinary worker, and I don't know much about P2P. I just look at many friends around me who are investing in this, and there is no threshold. I am not a Maoists in an individual population. In addition to investing in the head platforms in Lufax, I also take out some funds to invest in platforms with relatively higher interest rates.Discovery频道的《追缉：炸弹客 Manhunt: Unabomber》虽然影评及观众数上都有不错的表现，不过Discovery频道CEO David Zaslav表示他们要退出剧集领域改为重新专注在真人秀类节目，最终此剧转交到电视台Spectrum Originals。ICAO language level is currently a hard indicator in China, requiring more than 4 levels. If you learn to fly in China, you need to take the ICAO English proficiency test in China. If you learn to fly abroad, you will bring your own 4 levels.