D > B enters the synchronized block, and since instance is not null at this time, it immediately leaves the synchronized block and returns the result to the program calling the method. E > At this point, thread B intends to use the Singleton instance, only to find that it has not been initialized, so an error occurs. Therefore, there is still the possibility of errors in the program. In fact, the running process of the program is very complicated. From this, we can see that it is more difficult and challenging to write programs especially in multi-threaded environment. We further optimized the program:
P0M1=0xFF;
凯叔讲故事是一个专门给孩子讲睡前故事的微信公众号。凯叔名叫王凯，是一名自媒体人。凯叔讲故事，不止讲给孩子的故事，对于大人来说，同样是一种童年的回忆。
-Installation package slimmed down by 20%
中华民族的迅猛崛起，也粗暴地压榨了两大海洋帝国最后的生存空间，葡萄牙引以为傲的东洋花园沦为失土，西班牙自恃金银充盈在欧洲疯狂树敌，此时随着荷兰、英国、法国的强大，比利亚两国在欧洲同样开始经受失败。
严夫人身死，自有严党仇人暗中称快，也盼着严嵩早日归天，可光盼是不够的，要有现实意义上的作为。
只怕事情就有些不妙了。
"还以为是古董呢，原来是宝物？！” 挖地做生意的盗墓贼来了！ 姜东九（李帝勋饰）是天生的盗墓贼，他只要闻到土味就能找到宝物。 他遇到了自称是韩国印第安纳·琼斯的古墓壁画盗墓专家琼斯博士（赵宇镇饰）、传说中的铁锹达人（林元熙饰），组建了梦幻般的团队，培养了危险又刺激的盗墓版图。 另外，了解他才能的美术界精英馆长尹室长（申惠善） 向姜东九提议了既有魅力又危险的交易...！ 黃嶺寺金铜佛像，高句丽古墓壁画，还有首尔江南中心宣陵！ 越卖越大的盗墓世界！ 不同级别的铲子开始了！
15.1 Any naked eye with far vision lower than o.7 is not qualified.
7. Except for ships engaged in diving operations, ships less than 12m in length are not required to display the lights and types required by this regulation.
赵文华工部出身，对于铳炮还是略知一二，此前鸟铳点火发射，总要一套笨重的流程，眼前这个手铳可神了，直接扣扳发射，省了不少事情，外加携带轻便，真如戚继光所说，天降神器。
Action: Cry bitterly.
1. First, disconnect the data line. Turn the iPhone off
"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.
事关自己的小说，陈启也不能藏着掖着，便自己的一些想法，说了出来。
, is a monster! This is because medicine is desperate for money, and the market is desperate for money. If combined, wouldn't it become a monster? ! "
陈博涵午夜调查港湾广场，并未发现任何线索。但他在生活中，却经常出现莫名其妙的幻觉。调查期间，陈博涵得知火锅店老板阿城（王景春 饰）因为半夜通过港湾广场后也会经常看到婴儿的幻觉。教师陈文（潘粤明 饰）也因为去过港湾广场而经常产生被陌生男人殴打的幻觉，也因此向陈博涵求助。
互动爱情喜剧，围绕土星特派员土帅和火星王子火种对地球女孩陆凡的“爱情争夺”，并与生活在地球的其他外星人展开了一系列嘀笑皆非、浪漫搞笑的日常故事。 观众可在每集自由点选互动选项来决定主角的命运和剧情走向。
"It is incredible to dig so fast, I can also imagine how bad your situation was then. The "killer bees" all over the sky are already very difficult to deal with, Hitting the body can kill people with almost one blow. Two or three big mice can bite off people's limbs. The few besieged one person, which is even more destructive than wolves. However, judging from the history of the war, although the 149 position was hit hard, it finally successfully completed the defensive task. How did you do it? Or how did I get out of trouble? "I wrote down the key points before, stopped writing and then asked.
她接过信，听说是给小葱师姐的，自然要问是何人所书了。
