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:
发生在一九九七年岁末的古城西安，沣河派出所老张赴陕西办案，途遇车祸，因抢救旅客失血过多而晕倒，随身携带的六四手枪不翼而飞。西安市公安局八处（刑事侦查处）受命侦破该案件，在风雪严寒的艰难追踪中，线索扑朔迷离、头绪万千。机智的探警们精心侦破了一起又一起枪案，但均不是该案中丢失的枪。同时，这把枪在古城杀出租车司机、杀货运司机、杀家俱公司老板，连连致死人命。公安干警与一群心狠手毒、狡猾奸诈的凶犯斗智斗法，使得凶犯在随后试图抢劫金融机构、绑架勒索服装厂老板等犯罪活动即将得手的危急状态下，由于防范严密和布置得当而功败垂成。时至九八年三月，美国总统克林顿即将访华，第一站定在西安，四月份先遣队就将抵达古城。公安部下死命令，必须在三月底破获枪案。市公安局加大追捕力度，火车站军警大围捕，西安城半夜全城大清查，查线索至宁夏，追踪迹于上海，凶犯终于稳不住阵脚，企图杀掉当时卖枪人以灭口而后远走高飞。探警们废寝忘食，三天三夜，连连出击，倒毁西安老巢，捕主犯于北京，擒首犯董雷于武汉，赶在三月二十九号胜利破案。此时离公
夏哥就辛苦一点了，多挑一挑，总能找到合适的新人。
又是一个赤luǒluǒ的刺jī，接二连三的刺jī，终于让徐家兄妹彻底疯狂了。
First, the wires of the surveillance cameras on the east and west sides of the yard were cut off, the computer mainframe connecting the cameras disappeared, and the power wires had been cut short. There were signs of climbing on the wall of the courtyard. The stainless steel guardrail was pried open and a square gap appeared at the lower right. The square gap could completely accommodate an adult to enter.
Specification for printed boards
这样的话，外边哪怕闹翻了天，也不与咱们相干了。
永平帝阴沉着一张脸，逐一扫视群臣。
Gu Xixi was stunned at first and immediately knocked on the system wizard: "What's going on?" "Sorry, player." The system wizard did not pretend to be dead: "There is no imperial examination plug-in installed at this checkpoint." "Let...
你不问我来做什么？目之所及，都是绿色，她就是万绿丛中一点红，比荷塘中的荷花还要纯洁耀眼，他一点心思也不想瞒她。
Enterprise Strategy Branch Strategy, Business (Product Line or Division) Strategy and Functional Strategy. BLM provides a unified framework for enterprises to formulate strategies at all levels, but its area of expertise is still business strategy. The following figure shows the seven steps of BLM business strategic planning:
而且看情形分明就不是一般人，不然他只要解释清楚就行了。
What I actually want to say is that explosive mushrooms and ghost drugs cannot be drunk together. If you drink one another, you will not be allowed to drink it. You cannot superimpose it.
宫本是个职场菜鸟，在恋爱和工作上都十分笨拙，一直烦恼著自己在社会上生存的意义。直到某日，和靖子一见钟情后，他的人生终于露出一线曙光，稳定的日子过没多久，却突然发生了一件大事，彻底的改变了他们，让靖子和宫本的关系降到了冰点，宫本要如何做才能巩固这份得来不易的爱情呢？
百团大 战后，一夜之间我八路军立即化整为 零，除了留下部分军队保护八路军首 脑机关突围上山和日军兜圈子捉迷藏 外，其余的部队都分散各方突围，冲 出了日军的包围圈，进入了山区和平 原，跟当地的老百姓一起打起了游击 战。突围时被日军冲散的旅部机关参 谋赵云遇上八路军某部骑兵连连长李 强，二人又遇到了经验丰富的老战士 老曲，机敏的警卫排周排长，参军不 久的流浪儿小罗，五人阴差阳错地被 汉奸带到日军老鹰山煤矿，在李强和 赵云领导下煤矿上的苦力暴动，众人 终于逃出了这座人间炼狱，鉴于五人 出色表现，上级命令他们五人正式组 成一支武装工作队，前往敌后，同时 任命赵云为队长。至此，一支活跃在 敌后的八路军武工队面对着残酷的斗 争环境，蛟龙入海一般，和我众多抗 日军民一起并肩战斗，跟凶残的日伪 军特务汉奸们展开了一次又一次的生 死相博。
生活中失意的吕飞意外进入游戏中，而他想要回到现实生活的唯一办法就是完成游戏关卡，于是吕飞开始了漫长的闯关之路。吕飞在寻找沉木和钨铁的途中，遭到了董拙等一派人的追杀，也结识了貂蝉和臧霸等人。吕飞被貂蝉的美貌和温柔所打动，几欲动情，却反遭貂蝉背叛……
《毒枭第三季》是由佩德罗·帕斯卡领衔主演的犯罪动作美剧。
为了躲避种种烦扰，袁晶同意接拍此戏，带着乔凉连同摄制组赶赴安徽泾县某个古老的小村拍摄。在这一过程中，袁晶不仅承受巨大的拍摄压力，而且恐怖如影随形，不曾退去……
吴琳琳从小就喜欢看武侠，但是对千篇一律的旧式武侠真得厌倦了，而就在这时，天启横空出世。
