What we understand is that if a single schema is instantiated, it will only be instantiated once. To implement a single schema, we simply use a variable to identify whether the class is instantiated. If it is not instantiated, then we can instantiate it once. Otherwise, we will directly return the instantiated object.
七集电视连续剧《陈云在临江》由中央电视台、八一电影制片厂、中共吉林省委宣传部、白山市委市政府和临江市委市政府联合拍摄。它以丰富翔实的史料为基础，真实地再现了1946年秋至1947年4月“四保临江”的战斗经历。当时，国民党重兵进犯我东北南满地区。身为东北局副书记、东北民主联军副政委的陈云同志临危受命，前往南满领导军事斗争和主持地方工作。陈云同志精辟地分析形势，形成了“坚决粉碎敌人进攻、坚持南满根据地”的正确战略思想和作战方针。在历时108天的“三下江南”、“四保临江”战役中，彻底粉碎了敌人的图谋，扭转了东北战局，为我军由战略防御转为战略进攻赢得了宝贵时间，为辽沈战役的胜利奠定了坚实基础。
What is deliberate practice//127
"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".
纳特·沃尔夫将加盟由山姆·克拉弗林主演的新片[永远忠诚](Semper Fi，暂译)。影片将会由亨利·亚历克斯·鲁宾([断线])执导。电影讲述身为海军陆战队预备役中士霍珀(山姆饰)，阻止了因意外害死人而想要逃跑的弟弟(纳特饰)。当弟弟终审上诉被驳回，他决定不顾一切代价救出弟弟。
It is said that female journalists with outstanding images are more likely to be named. Although they have not been confirmed by the data, in order to gain the right to interview, female journalists can be said to make full use of all resources and seek one in thousands of miles.
故而毫不皱眉，端起酒水一饮而尽，横置盾牌于身前，拔出刀剑，龙且和虞子期不由的神情一紧，却见樊哙切开生肉，大口大口地撕咬起来，吃的津津有味。
There are about 4,000 species of known medicinal plants throughout Europe, of which more than 300 are used as medicines. Is only China still using botanical drugs? No ~ No ~ No ~ In Europe, its long history can be traced back to Hippocrates in ancient Greece. As for Hippocrates' specific glorious deeds, please Baidu yourself, because I don't know, the history class was skipped by me.
六合门门主关无尘，乃武林正义之士，为除武林大害，率领同门师弟六人围剿密族门閰震天一伙。閰震天等不敌负伤逃去。二十年后，閰震天重回武林，誓师追剿六合门人马，以了早年大恨。查实六合门人马经早年硬并密族门一役已元气尽伤，隐居西藏。今回閰震天重新挑衅，唯有倾尽各人武功，训练少主楚华之，令其腿、眼、臂、腰及轻功都能超越各长辈，与恶魔再作生死决。
电视剧《冰山上的来客》是根据1963年的经典电影《冰山上的来客》改编的，这部片子曾激励了几代人的奋斗与成长，40年后两拨儿“冰山来客”要在荧屏聚首。电视剧《冰山上的来客》虽然改编自同名电影，但导演戴冰的手法不同于以往红色经典的改编，戴冰根据当年电影编剧白辛记录的素材，另起炉灶重新编一个故事，电视剧首尾都是新内容，只有中间一部分将老故事融入进来。之所以电视剧依然叫《冰山上的来客》，戴冰说：“新故事很大篇幅都来自电影编剧白辛记录的大量素材，另外表现的主题是不变的。”
娘俩还没说几句话，就见小草来说，大姑娘请太太和大少爷过去，她有话要说。
其实刚才抵抗邓陵墨高手的主要力量就是魏国刺客，相对来说周徐两家家将差了好多。
日和从今年春天开始就是高中生了，更赞的是她好不容易说服妈妈让她一个人生活，正当日和像只快乐的小鸟前往租屋处时，确发现有人捷足先登!!原来是妈妈担心她自己一个人，所以特地找了儿时玩伴来陪她共同生活，问题奏志是男生啊，妈妈到底是哪根筋不对劲啊……
说什么信什么，清纯型的王小怡；说什么都见过，美艳型的贾丽，在两大美女之间，三大网虫勾心斗角，各显神通。情场拼刺刀，醋海翻波涛——谁笑到最后，谁笑得最好？
侦察英雄周俅退役后在高达公司任保安，高达公司正在举行第三届模特儿大赛。公司总裁韦丽遭到康倩的暗杀，被周俅及时制止。周俅和康倩本是恋人。三年前，倩考上高达模特公司出国，从此断了音讯。原来，韦丽这个人贩子以招收模特的名义把倩卖给南美一个原始部落酋长为妾。如今她回来复仇。周俅要帮倩报警，倩却坚持要亲手杀仇人。他们与韦丽展开了生死搏斗，先后身负重伤。倩在周俅的帮助下，射杀了韦丽，报了血海深仇。
Exception Triggering Method: Strike Judgment Class
就眼下来说，越不正常的举动就越显正常。
炎灵儿（罗米饰）原为太上老君八卦炉里的火灵，在孙悟空（陈浩民饰）大闹天宫时，为他的桀骜所吸引，后随八卦炉坠落火焰山，一直在此默默守候孙悟空的到来，可谓是“为爱守候千年”的典范了。
