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10-12Separate the internal representation of the product from the construction process of the product. Q: How can they be separated? Answer: Don't put the construction process of the product in the product class, but the builder class is responsible for the construction process, and the internal representation of the product is put in the product class, so it is not separated.Initiating a resolution request to a DNS server for a random, non-existent domain name; In this way, the DNS server needs to carry out frequent string matching. Since the corresponding results cannot be found locally, the server must use recursive queries to submit resolution requests to the upper domain name server, causing a chain reaction.走几步，忽然想起什么，又转头问秦淼：红鸾公主怎么样了？秦淼忙道：哥哥放心，已经大好了。1942年10月，日华北方面军派遣1.6万兵力扫荡在岳北部，据守沁源县城，企图以此为基地，分割蚕食太岳抗日根据地。为粉碎日军阴谋，八路军太岳军区主力与地方武装、民兵团结奋战，进行了一场艰苦卓绝的战领与反占领，围困与反围困的“沁源围困战”。大叔和哥哥他们肯定饿了。彭越和韩信那边有什么情况？项羽强迫自己冷静下来，思索着事情的前因后果，想办法解决眼前的困局。