Class has only one instance. Q: How can we guarantee it? Answer: Private constructors are used to ensure that classes cannot be instantiated outside the class.
咸丰年间，由张仰山经营的松竹斋，因其承办官卷、官折而成为当时京城琉璃厂里最有名气的一家南纸店。松竹斋由于名声好商品质素佳，又安逸的做着官家生意，多年来平稳发展，张家一家与店里伙计也和睦共处相安无事。
柳记粮店老板的儿子柳云轩，抢了家里的钱做经费，去省城参加学生运动，被赵督军抓捕。刑场上，柳镇土豪柳爷的大太太救下了柳云轩，赵督军却趁机吞吃了柳爷买枪械的五千大洋。柳爷损失了巨款，要拿柳家的人命相抵，柳云轩无奈去了柳家大院做家丁。
亲缘2020
//and B methods; Method A and method B write specific business logic in subclasses in turn.
二狗归来！冲南京战群雄。南京鸡鸣寺，陈二狗按照王虎剩的说法在鸡鸣寺门口守候，只是在虎剩等人到来之前迎来的是一个穿布衣的女孩儿，只知道她是曹蒹葭的旧识。半碗素面过去女孩儿也离开了。王虎剩领着三千解放进门，四人惊喜重聚一起进了山水华门别墅
Let's think about another problem. We have placed a string of rules on each "chain", but some of these rules are very similar. For example, Class A rules filter IP or ports and Class B rules modify messages. At this time, can we put together the rules that realize the same function? We must be able to do so.
Piper 出狱了，但是她融入社会的过程非常艰难。不过与曾经监内的同伴相比，她要幸运得多，已经能够把监狱的动乱和不公抛在身后。Taystee 和 Cindy 的友谊也会是最终季的一条故事线。Taystee 因为一桩没有犯过的谋杀而被判了终生监禁，移民囚犯 Blanca 则面临着被驱逐的命运。
In fact, content-based products are not a very typical division method. I also spent some time summarizing and refining this sharing, which was not detailed due to space constraints. If you go down the line, it is estimated that it will take 3-4 hours.
……以前的大年初六，大家伙一般还处于春节综合症中，但是今年的这时候，大家伙们反而一个个像打了鸡血一样，恨不得日子快快地过去。
But then again, It is not entirely true to say that the fire cut-off at position 142 is exactly the same as that at position 169. Because in addition to the large consumption of ammunition, There is also a major reason: It was at that time that some comrades of the reconnaissance troops found out that the Vietnamese army had failed to sneak attack. Pull a large number of large caliber artillery prepared in advance out of the woods, Prepare to support the infantry that stormed various positions. After this message is delivered to the rear, The first task of our artillery group changed from blocking the Vietnamese attack to suppressing and destroying the Vietnamese artillery group. The two sides started an artillery battle over this, Although it is said that our artillery is not only in terms of performance but also in terms of quantity, Both of them had an overwhelming advantage, coupled with the precise positioning of the comrades of the reconnaissance troops, so it took 20 minutes to complete the complete elimination of the Vietnamese artillery group. Later, I also saw in a military magazine that when the artillery battle was the most intense, some artillery comrades who pulled the bolt swollen their arms. It is conceivable how fierce the fight was. " Li Haixin said.
If the steam parameters are increased, it will help to improve the utilization efficiency of waste heat, increase the power generation and increase the income of waste plant, but at the same time it will also aggravate the corrosion of waste heat boiler materials, shorten the service life of equipment and increase the depreciation cost. The boiler parameters of the first phase of Guangzhou Likeng Waste Incineration Power Plant are 5.4 MPa and 490 ℃, reaching the sub-high pressure parameters. The economy of adopting the sub-high temperature and sub-high pressure parameters and the adaptability to China's national conditions are still being explored.
还好还好。
Article 35 Sound signals used in case of poor visibility
网上都在说，这期的《倚天屠龙记》会有神转折，曹林也认为这期肯定会有神转折，所以他对这期的章节非常期待。
Updated June 16
