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.
收起心头诸般思绪，林瑶开始看这期的《倚天》。
影片围绕一起杀妻案件展开，张赫与河正宇、朴熙顺分别饰演嫌疑犯、律师和检察官，上演头脑对决，再现法庭上紧张激烈的气氛。
至于家庭聚会，等他看完东方不败和令狐冲的故事之后，再说吧……这个表哥不是一个特例，千千万万所有喜欢武侠的人都和他一样。
Germany 8 million 20 million 28 million
可是瘦死的骆驼比马大，这实力之强劲依旧不可小觑，现在秦国灭亡，这支军队完全**出来，是一直足矣左右局势的力量。
孩子很可爱的……范依兰低声回应。
Greece: 5,000
高兴？什么开心的事情？尹旭立即说道：这还用多说吗，自然是娶到了你这个美娇娘，我开心啊。
Command mode belongs to the behavior mode of an object. Command mode encapsulates a request or operation into an object, and separates the responsibility of issuing the command from the responsibility of executing the command through abstraction of the command. The implementation of command mode can provide the functions of revocation and recovery of commands. The specific structure diagram is shown below.
狼群似乎知道此人想法似的，嚎叫的更加的让人心惊胆颤。
Two-way unrequited love, sweet and warm.
1 In case of failure on the highway during the day or at night, the warning sign shall be set at 50 ~ 100 meters behind the vehicle.
Rex 是一间专为超级富豪服务的婚介公司，对他们来说，婚姻就是一门满足欲望的生意。
于是，他成为山庄最炙手可热的新好医生，每週二的免费义诊谘询吸引更多居民看病，让他赚进大把钞票，同时也邂逅了一位美丽的农场女子，事业爱情两得意，引起了村庄神父的忌妒，神父愤怒看著他的教徒都挤在诊所外，而不进他的教堂，正好一个知道医生黑历史的不速之客出现在村庄，与神父联手来扰乱医生的大好计画…
Invoke invokes the delegate's instance method to execute the method
本剧改编自同名高分人气网络漫画，讲述在优渥环境下长大的金正惠（李枖原 饰）与在传统市场做鱼店生意、过着不如意生活的红桃洪度熙（罗美兰 饰）及以孤儿身份生活的美淑（明世彬 饰），这三个女人怀着不同原因复仇的故事。
若非处于敌对之中，能够坐在一起把酒言欢自然是最好不过。
The second method: recovery in case of key failure
