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(3) Power on the control coil to detect the contacts. Apply rated voltage to the control coil of the time relay, and then detect whether the contact state changes according to the type of the time relay. For example, for the energized time delay type time relay, after the energized time delay, whether the delayed open contact is closed (the resistance is close to 0) and whether the delayed closed contact is opened (the resistance is infinite).在南极洲的北极星六号国际基地，讲述科研工作者们的“极端的生存悬疑”故事：南极洲长达半年的漫长冬天来临，极夜中，有10个科研人员留守在基地，中途与外界断了联系。而此后，当外界的科研人员返回基地，迎接他们的是灾难性的景象：留守10人中已有多人死去，1人失踪，两人幸存。黑暗、冰封、与世隔绝的基地中，到底发生了什么？念念不忘，必有回响。哦？项羽疑惑地看着范增，嘴唇轻动，并未开口说话，目光之中满是探寻……范增自信笑道：适才说过了，杀熊心不能由我们自己动手，不过借刀杀人未尝不可。The learning platform of "Learning Power" consists of two terminals: PC terminal (website) and mobile phone client. The website of the PC side is www.xuexi.cn, and the client side can download it free of charge in various application stores. This reporter logged on to the website and downloaded the mobile phone client in the first place.E-book download国内化妆品行业龙头卓奥集团遭遇发展瓶颈，总裁沈志泽高薪聘请高级经理人许诺以解决经营不善等问题。许诺大刀阔斧地改革，触动部分老员工利益，副总余秋美私下联合他们排挤许诺。许诺的能力和实干获得部分员工支持，扭转不利开局，与沈志泽的关系也从针尖对麦芒到互生好感。许诺意外发现父母介绍的相亲对象竟是同事林凡。暖男林凡与冷酷的沈志泽形成鲜明对比，许诺难以抉择。几个重点项目大获成功，沈志泽对性格阳光、做事果断的许诺更加欣赏、爱慕，但他仍无法忘怀已去世的女友。深爱沈志泽的余秋美刻意布局，指责许诺是竞争对手派来的卧底，使其离开公司。梦美集团意图吞并卓奥，沈志泽查出原委，请回许诺，众人力挽狂澜。最终，余秋美被许诺的真诚与能力折服，林凡也为爱放手，许诺和沈志泽终成眷属 。