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PS：最近停电就像家常便饭，每日码字上网时间受到很大影响，更新时间有些迟，还望各位朋友谅解。4. The construction of the teaching staff and the control of the quality of teachers;The above is just a synchronous chain of responsibilities, We let each node function return a specific value "nextSuccessor" synchronously, To indicate whether to pass the request to the next node, we will often encounter AJAX asynchronous requests in our development. After the request is successful, we need to do something so-and-so. At this time, if we apply the above synchronous request again, it will not take effect. Let's understand and use asynchronous responsibility chain to solve this problem. We add another prototype method Chain.prototype.next to the Chain class to manually pass the request to the next node in the responsibility chain.It's good to like it yourself. This is the key. Only when you feel better can you make progress. However, I have written information here and hope I can help you.Hematopoietic system王突断断续续说了许多话，嗓子毛痒，禁不住又咳嗽起来。　　《别夜》：叶嘉琳与余雁飞，在80年代香港依然美丽的夕照中相恋。女方一家移民海外，二人无奈承受离别之苦，只余下相爱的记忆。