Advanced Mathematics (3rd Edition of Peking University): I don't read much books on linear algebra. I studied advanced mathematics when I was in school, but it doesn't matter. Just look at the first five chapters. Cooperate with the corresponding video and master the relevant knowledge of matrix and determinant.
二十年前一宗手术，令两名儿科专科实习医生况丛昕（马国明饰）与许甘枫（郑嘉颖饰）决裂。 时日过去，丛昕当上顶尖医院“安妮医院”的小儿外科顾问医生，而一心捍卫生命的甘枫却于一间二线医院落脚，两人本来各走各路，岂料因一宗肝移植手术而再次碰头，命运亦从此连上。
Heilongjiang Province
锦州战役，尖刀营营长郝豹正带领着战士们攻上山头与敌人肉搏，当战斗胜利时，他的未婚妻兰珍却已倒在血泊中，留下了年幼的儿子连娃子。战争中的郝豹无力照顾儿子，只得把连娃子交给老乡代养。新中国解放不久，郝豹接到命令，被调遣到祖国最北部的，人称“北大荒”的地方，开始了军垦生涯。他们仍然沿袭着部队上的编制，延续着军人的作风。丢下枪杆子，拿起锄头开荒种地，将士们一时都难以适应。这些经历了枪林弹雨的男人们，一旦停下来，便想有个家。尽管荒原上没有屋子也没有人烟，但他们想女人，有了女人才会有家。有人说没女人哪怕有个孩子哭哭闹闹也好啊，他们甚至蹿掇着郝豹把连娃子接回来。就在这时，文书萧山岳去团部取信，带回来一个天大的好消息：要不了多久，北大荒就会有女人来，这一下可把大伙乐坏了，人们盼望着姑娘们的到来。
哆啦A梦和大雄去到了太阳王国——玛雅王国，在那里遇上的玛雅王子，不知怎的，意和大雄长得一模一样。于是大雄便和王子交换衣服，掉换换身份，在对方的世界生活…
根据线索，骆迦山和邝队等人赶至一座出租屋围捕。结果，非但未能见到人质柳素素，反而骆迦山在行动中误杀了一个名叫“马桶”的嫌疑人。邝队在现场发现一张模糊照片，带回警队交给技术部门处理。
曾经红遍亚洲的超模新星文青遥因为感情受挫，突然离开T台销声匿迹，一年之后，浪子青遥回来，发誓不再涉足模特业，这让青遥的经纪公司老板，也是青遥母亲的时尚界女魔头马锐无法接受，决定不择手段让儿子回心转意。来自偏远乡村的边庭花立志进入自己热爱的时尚圈，有朝一日接近心中偶像文青遥，偶然机会，她发现住在隔壁、落拓不羁的神秘男子，居然就是青遥！两人误打误撞成为了一对情侣。在经历了一系列笑中有泪的波折动荡后，青遥重返T台，最终与庭花牵手。
这是一个疗愈系列的故事，似探案又似心灵解密。咖啡店常会有一种记事本，让大家涂涂画画，写写心情故事。女主角关菱菱发现，透过咖啡店里最普通的一本心愿本，居然能够连结现在与未来…。
平行麦现场首期Live专场，郝云超级在线演唱会即将开始。多情境在线音乐之旅诠释郝式演出新模式，一镜到底、迥异光影、多场景切换、行进式演出，带你体验一场与众不同的在线演唱会。
Centos7, The service is no longer started using init-style scripts, Instead, the unit file is used, Therefore, commands like service iptables start can no longer be used in centos7, Therefore, service iptables save cannot be executed. At the same time, firewall is used to replace the original iptables service in centos7, but don't worry, we just need to install iptables and iptables-services through yum source (iptables are usually installed by default, but iptables-services are not installed by default in centos7). After installing iptables-services in centos7, the rules can be saved by the service iptables save command, as in centos6, and the rules are also saved in the/etc/sysconfig/iptables file.
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。
Mullenathan said: "People's vision will become narrow due to scarcity mentality, forming a restricted view, that is, only a small number of objects can be seen through the holes in the 'pipe' and everything outside the pipe is ignored."
老友米克和弗雷德结伴前往阿尔卑斯的度假旅馆，他们以爱和幽默的视角，探讨子女们满是麻烦的生活。米克是导演，正在积极创作自己看来最重要的一部电影，而早就没有了事业追求的指挥家、作曲家弗雷德却收到女王伊丽莎白二世的邀请为菲利普的生日演奏。
Liskov Substitution Principle, LSP (Richter Substitution Principle) means that subclasses must replace their parent types. In other words, in the process of software development, after the subclass replaces the parent class, the behavior of the program is the same. Only when the subclass replaces the parent class and the function of the software is not affected can the parent class be truly reused, and the subclass can also add new behaviors to the parent class. In order to look at an example of violation of LSP principles, the specific code is as follows:
徐风大胆地揽住季木霖的脖子，咧嘴一笑：打完我后悔了吧？没有。
那么现在，就当着他的面。
"I am from Beijing, Ancestors raised dogs for the imperial court, The dog was not the pet of the nobles, Even royalty racing dogs, One by one, They are very expensive, In terms of seniority, it is a matter for my great grandfather's generation to move forward. Therefore, the family has inherited dogs from generation to generation, I have also saved up a lot of ancient books and materials in this field, Some of them were found and burned in the period of breaking the Fourth Old Age. Also because this was criticized during the Cultural Revolution, But it doesn't matter, The key is that I can look at dogs. I have been growing up in this environment, so I have had special feelings for dogs since I was a child. You see, unless I have to use it, for example, now, otherwise I never say the word "dog" but only "dog", because this is a kind of respect for dogs. This is like describing that it is normal for people to talk about "a", that is, to talk about "only" or "bar", that is to swear.
一番争论后，几个恶人决定暂时不杀燕南天，要把燕南天折磨到死。
Public Memento createMemento () {
1. Detention of motor vehicles: license plates, inspection marks and insurance marks are not hung; Not carrying a driving license, forging relevant certificates or using other vehicle certificates; Achieve 12 points in a scoring cycle.
