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美国游客Frank独身远赴欧洲一心治疗情伤，却在火车上邂逅了背景神秘的性感女子Elise，正当Frank陶醉在二人世界之际，危机却渐渐迫近，自巴黎开始被追踪监视，来到威尼斯更惹来各方人马追杀……随着Elise的真正身份揭开，Frank 才惊觉自己卷入了一场精心布局的危险游戏！A new military strategy怎么如今这么大了，咋又来学医了？蝉儿表妹……往后要住在家里了。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:当初自己光是着急着想要提升越国骑兵的战斗力，却将最为基础的问题忽视了，今日骑在马上颠簸不已，马匹也分外难受。日本全国有多达500万台的监视摄像头。为了运用这些摄像头，通过最先进的监视系统来进行犯罪搜查，神奈川县警新设了独特的特殊部队。这就是“KSBC——神奈川县警搜查分析中心”。以KSBC特别搜查官的身份，挑战谜团重重的疑难事件的男子，正是当年神奈川县警搜查一课大名鼎鼎的干练刑警——伏见响介。他为KSBC招募到了这些民间搜查员：擅长人物侧写的前大学犯罪心理学教授、曾是自卫队队员的单身母亲、年轻的天才黑客等等，每位成员都个性十足。乍一看，KSBC仿佛是一支理想强队。但这里的每一个人，都肩负着黑暗的过去，都是“曾犯下罪行的人” 。1. Improper site selection and unprotected water resources, and there was nothing I could do in the face of this year's drought. One of my uncle's families planted more than 20 mu of rice and collected more than half of it. In those days, I inquired everywhere about buying a sprinkler for emergency. In the end, even if I bought a car, I had no place to pump water. It cost a lot of money to pump water and burn oil. In the end, I did not necessarily save my life. Finally, I had to give up.