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The arrangement of devices on the printed board is as uniform as possible and the orientation of devices is as consistent as possible. In addition, special attention should be paid to the arrangement of power supply and ground wire to meet the electrical performance requirements of the circuit. Attention should be paid to weak current and strong current, strong current and strong current, photoelectric isolation between power supply and ground wire, and sufficient creepage distance between internal and external circuits.新晋网红打造的MCN公司，老板向东流手下拥有两名得力干将，负责内部管理的叶之舟和负责市场营销的曾心。然而，有关向东流和叶之舟的流言从未间断，向东流在此时提出离婚，一时间谣言甚嚣尘上。充满市场敏锐度的曾心提议趁此机会做一场离婚直播，叶之舟劝阻无效，离婚仪式被提上日程，也因此引发了向东流妻子的不满。离婚仪式在众人合力之下完美收场，随后向东流意外晋升叶之舟为总经理，也点燃了叶之舟与曾心之间的斗争。而另一边，叶之舟答应实习生范思哲成为他研究心理学的对象，范思哲却是流言中插足向东流婚...The following procedure is to use the state mode to improve the light. When it comes to encapsulation, the behavior of the encapsulated object is generally preferred over the state of the object. But the opposite is true in state mode, The key to the state mode is to encapsulate each state of the thing into a separate class, and the behaviors related to this state are encapsulated inside this class, so when button is pressed, only the request needs to be delegated to the current state object in the context, and the state object will be responsible for rendering its own behaviors. At the same time, the state switching rules can be distributed in the state classes in advance, thus effectively eliminating a large number of conditional branch statements that originally existed.(2) with a registered capital of more than 4 million yuan and a construction area of more than 200 square meters;There is an opening at the lower part, and there is a fan inside, which can be rotated to eject water when in use.他跟小葱一个心思，因此正容告诫了玉米一番话。