The observer pattern defines a one-to-many dependency, allowing multiple observer objects to listen to a topic object at the same time.
In the process of DNS resolution, the client initiates a query request, and the DNS server may need to make additional queries to complete the resolution process and give a response, which will consume certain computing and network resources. If an attacker uses a large number of controlled hosts to continuously send resolution requests for different domain names, the cache of the DNS server will be continuously refreshed, and the failure of a large number of resolution requests to hit the cache will cause the DNS server to consume additional resources for iterative queries, which will greatly increase the resource consumption of the DNS server.
Emily Watson饰演苏联核物理学家Ulana Khomyuk，她致力调查切尔诺贝利的真相，好使未来不会再发生同类事件。但调查期间令她与想埋葬可怕秘密的人造成冲突，为了真相她得冒着失去自由，甚至生命的危险。Jared Harris饰演苏联科学家Valery Legasov，被克里姆林宫指派调查该事故。
从英国留学回来的包小波是安居老板的独生子，典型的85后小开，由于经营咖啡馆失败，而被父亲包达仁要求到安居做见习总经理。
好的，那么黑夜先生，请问你认为这次消费是理性消费吗？四十万不是一个小数字，这些钱可以做很多其他的事。
尹旭看到军报的时候，没有丝毫的惊讶，完全都是在意料之中，嘴角还带着那么几分〖兴〗奋。
No.1 "Wild Ball Boxing": The damage energy ratio is 214.2. Everyone knows that this is actually hanging, which is not in the same style as other skills. To tell the truth, many players don't like to use it and feel that it damages the game experience, but in fact it is quite cool to use this trick to clean up BOSS.
林指挥使自会禀告本将军。
System.out.println ("build the tree finished! ");
The only use of * * is probably that I can't remember the name of the medicine when writing the plot of the Potions lesson * *
"I personally feel that there is still a little luck in this, After breaking up the colony, For a few more minutes, I don't know, Because this is the first time I have met such an 'opponent', No one has experience, Anyway, one is counted as one, It is true that there is no end to shooting with guns. Fortunately, there were flamethrowers prepared to counter the impact on the position at that time. The model I remember was 74, At that time, it was still a relatively new model. In terms of performance, The direct firing distance of '74-jet' (abbreviation of 74-type flame thrower) is about 50-75 meters. If the soldiers who operate it are not specially trained, Generally, only straight-line targets can be hit, It's a little bit of a slope, But in the hands of specially trained veterans, '74 Jet' can fire into that air, Although the range is much less than that of direct shooting, Only 25-30 meters, But after all, he didn't take it to the plane, It is used to deal with enemies in low-rise buildings in street battles. Therefore, it is enough, but it is quite dangerous to spray high-altitude targets with flamethrowers. After all, the fuel sprayed out is liquid. Once the distance and wind direction are not grasped well, it is easy to let the fuel sprayed out fall back again. If it accidentally splashes on oneself, it is really a "fire".
讲述受西方思想的夫妻，返回平安谷，想改变、建设家乡却遭遇重重困难，之后又牵扯幽灵新娘、绑架、凶杀等各种情节的故事。
听得人群一静，有个傻呵呵的家伙还往女娃那边瞅，连声问道：在哪？我瞧瞧是哪个
为什么，你为什么会这样？王本固胳膊被捏的疼痛不已，怒视俞大猷：俞总兵……难道你也与倭寇勾结？我……俞总兵。
At the end of the match, there will be a break for a period of time. The second match will be played by the loser of the first match and C, so as to maintain the appreciation of the match. Because if the winner of the first match and C play, there will be no suspense for the third match if he wins in a row.
人是花生派的，他结巴道：你……谁暗害你了？大苞谷道：又不让我见爹娘，又派人跟踪我，想干嘛？哼，不能暗中下手，就派人栽赃，想给我按个罪名。
小葱的奏折递上去后，到底还是有御史忍不住。
MDT started relatively late in our country. At present, in some large medical centers such as Beijing, Shanghai, Guangzhou and Chengdu, MDT diagnosis and treatment mode has been relatively standardized and mature, and plays a role as a benchmark to drive MDT diagnosis and treatment work in hospitals in surrounding regions. However, in general, there are still some problems or misunderstandings in the organization and implementation of MDT in our country. For example, MDT is considered a waste of manpower and time and is not paid enough attention. The organization is not standardized and the personnel are not fixed. It is believed that MDT is limited to consultation of difficult cases. Lack of MDT goals and guidelines; MDT decision-making is not carried out; Communication among various disciplines is not enough to reach consensus. Lack of MDT evaluation system, etc. In order to promote the effective organization and implementation of MDT diagnosis and treatment mode in China, the "Multidisciplinary Comprehensive Treatment Professional Committee of Surgeon Branch of Chinese Medical Association" was established in Beijing on May 15, 2015, referred to as "MDT Special Committee of Surgeon Branch of Chinese Medical Association". The main work objectives of MDT Special Committee are: to promote MDT concept, formulate MDT specifications and consensus; Explore the formulation and promotion of executable MDT organizational forms and processes; Through organizing MDT activities in various regions, help improve MDT cooperation spirit and diagnosis and treatment level in hospitals at all levels in China; Strengthen MDT cooperation and communication between hospitals and break down barriers between hospitals; The Internet will be introduced into MDT activities to promote the development of MDT nationwide. It is hoped that through the work of MDT Special Committee, MDT concept will be deeply rooted in the hearts of the people, standardized and reasonable disease treatment will be realized from MDT mode, more doctors will grow from MDT, and
