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:
瑞普利是个出身平凡，生活也毫无值得炫耀的年轻人，他受到一个富商之托，到意大利去游说他号荡不羁的儿子迪 基，重回他的家乡美国。但是当瑞普利一到那里，就深深地被迪基的生活形态所迷惑：美丽的别墅、高级浮华的度假饭店、一掷千金的奢靡生活，以及他美丽温柔的女友，都令他羡慕不已。
Mr. Sun Yimin's guidance to the practice team is not only reflected in practice, but also in the safety, life, study, life and other aspects of the team members. When this activity was slightly conceived, Mr. Sun repeatedly stressed with the captain the safety of the team members' stay in school, the transportation mode and route for two days out, etc. The teacher also repeatedly asked about the cost of this activity, and was very worried that some classmates would have family difficulties and could not afford the cost. On the day before the start of this summer's social practice activity, the team leader and vice-captain were worried that the content of the activity was not full enough. Teacher Sun Yimin immediately built a bridge for the team and introduced the team to Dalongfang Science Park. Within 9 days before and after the activity, two days of pre-contact and three days of probation, Mr. Sun Yimin took out the whole three days to accompany the team to three probation bases to accompany and guide the activity. Before and after each activity, in order to make the team members better transform what they have learned in practice into their own abilities, Mr. Sun Yimin encouraged the team members to actively ask questions and establish contact groups with successful people they met during the probation process, so as to facilitate better communication between the team members and role models.
这让他想起初到彭城的那个深夜，与熊康的一番话。
"You said 'similar'? Does it mean that in addition to the unknown creatures that attacked you twice before, there are new unknown creatures' participating in the war '?" I asked.
"Around my life! I will leave this place forever! Please!"
她的香荽妹子哟。
You play this kind of game too little, or too one-sided, the simplified version is the threshold, and then the critical strike is perfect when the attack explosive injury must be mentioned, and then according to the version, there will be a long-term battle, the speed income is actually higher, played a lot of the same type of passing by.
酷酷的赏金猎人·沙托和谜一般的最强男子·李雅哈。
劳尔（河本启佑 配音）自小就立志成为一名勇者，并且为了实现理想而付出了大量的努力和汗水，尽管周围的人都将劳尔看作是胡言乱语的怪人，但这并没有阻止劳尔追逐梦想的脚步。然而，就在他即将取得勇者测验合格证的前夕，竟然出来了魔王被打倒的消息，勇者制度亦因此被废除，这也就意味着，勇者劳尔，失业了。
严嵩虽倒，严党未清，皇上与严嵩相处多年，日后必会念旧，此战还远未到收官之时。
In the months before the 2016 election, the Democratic National Committee was hacked. Documents were leaked and fake news spread wildly on social media. In short, hackers launched systematic attacks on American democracy.
一家偏远的阿根廷度假村恢复了曾经的宽板滑水竞赛。这吸引了墨西哥运动员斯黛菲，她决心揭开一个家族秘密。
Chu can also see clearly that the reason is that there are too many of them. Let's describe them this way-it looks like a dark cloud rising out of thin air in the rainforest. "Zhang Xiaobo said.
1. Notwithstanding the provisions of Sections I and II of Chapter II, any ship overtaking any other ship shall give way to the overtaking ship.
各自心中怀揣着对“婚姻”的定义，电视台编导谢晓骏和公关公司女白领吴越，在相识只有五个月时走进了围城，试图寻找婚姻的终极答案。
4. "Towing lamp" means a yellow lamp having the same characteristics as the "tail lamp" mentioned in paragraph 3 of this Article.
那些首饰也是，把小巧精致的耳环、戒指、簪子多挑些带上，娘的两个舅舅家，还有你爹外婆那边，你大姐婆家，他们都有闺女，要送的人多呢。
二十年代，西医大夫林敏夫从某西医院的手术室冲出，他的岳父一当地富豪，因敏夫不慎失手，命丧 手术台。敏夫面对家庭前途将毁于一旦，情急下央求长年受他接济资助的同学及同事—吕阳明帮他顶罪受过，并发誓好生的照顾阳明的妻儿，阳明为报恩，一时意 气，勉强答应。
