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Basic Electrical Safety Precautions and Procedures: Safety is all about preventing accidents. Personal injury typically occurs because safety precautions are either not learned, or they are not practiced. This safety manual is offering some basic safety procedures and precautions to help ensure your safety when servicing your appliances. If you cannot operate basic tools, you should not attempt to maintain or repair any of your major appliances. Call an appliance repair technician if any repair or maintenance procedure is not understood. Keep a first aid kit near by. Be aware of and know how to use the contents of the first aid kit. It is also a good idea to have a fire extinguisher handy just in case of an emergency. SAFETY PROCEDURES: Safety precautions are relatively similar for all of the major appliances. Make sure to pay close attention to any and all safety cautions and warnings posted on the appliance being serviced. Understanding and adhering to these safety tips can greatly reduce the risk of personal injury. Individual Safety Precautions: Protecting yourself from injury and harm is absolutely imperative. We strongly suggest that before you begin to maintain, install or service any of your appliances that you strictly adhere to each of the following: Always wear gloves. A sharp edge on an appliance can hurt and/or cut your hands. Be sure to wear safety boots. You can cause serious injury to unprotected feet by dropping any heavy appliances or tools. Refrain from wearing loose clothing. Loose clothes can get caught in an operating appliance. Remember to remove any jewelry when servicing an appliance. Wear safety glasses to guard your eyes from any dust or flying debris. Make sure you use the correct tools and that they are clean and in good condition. When does personal injury usually happen?
A.
When a person does not refer to a safety manual.
B.
When a person is not aware of safety precautions.
C.
When a person tries to fix home appliances alone.
D.
When a person doesn't have a first aid kit.
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【判断题】产品创新是创造产品,进一步满足顾客需求或开辟新的市场。
A.
正确
B.
错误
【多选题】胸部的体表标志有
A.
胸骨角
B.
颈静脉切迹
C.
剑突
D.
肋弓
【多选题】胸部的体表标志有
A.
胸骨角
B.
颈静脉切迹
C.
剑突
D.
肋弓
E.
【单选题】对下列材料的主要信息提取关键词,最准确的一项是 ( ) 引力全称万有引力,指具有质量的物体之间加速靠近的趋势,简单说就是物体之间相互吸引的作用力。在爱因斯坦广义相对论的视野里,引力等价于弯曲的时空。而引力波就是在弯曲的时空这个大背景下,当发生有质量的物体加速运动导致的扰动时,由此产生的波动如波纹一样向外传播的现象。 一个世纪前,爱因斯坦预测了引力波的存在,但近百年来,科学家们并未找到证明它存在的...
A.
万有引力    引力波    发现     影响 ( 意义 )
B.
引力波 首次 ( 美国 ) 发现     影响 ( 意义 )
C.
引力波 爱因斯坦   预测     证明
D.
万有引力 预测存在   证明存在   影响
【判断题】国家体育总局是全国各级各类学校体育工作的最高行政领导机构。
A.
正确
B.
错误
【判断题】国家体育总局下设青少年体育司,其主要职责是:(1)拟定青少年体育工作发展规划草案、青少年业余训练管理制度;(2)指导监督青少年体育锻炼标准的实施;(3)指导全国各级各类体育运动学校、体育传统项目学校、青少年体育俱乐部的建设和有关学生文化教育工作;(4)指导开展青少年业余训练及相关活动,组织指导重大青少年国际体育比赛参赛工作。
A.
正确
B.
错误
【多选题】胸部的体表标志有
A.
颈静脉切迹、胸骨角、剑突
B.
锁骨、锁骨下窝、喙突
C.
喉结、环状软骨
D.
肋和肋间隙、乳头、胸大肌和前锯肌
E.
肋弓、胸骨下角、剑肋角
【判断题】自我接纳是心理健康的重要内容。
A.
正确
B.
错误
【多选题】胸部的体表标志有
A.
颈静脉切迹、胸骨角、剑突
B.
锁骨、锁骨下窝、喙突
C.
喉结、环状软骨
D.
肋和肋间隙、乳头、胸大肌
E.
肋弓、胸骨下角、剑肋角
【单选题】车体的宽度与驱动方式是按什么方式分类
A.
车辆规格
B.
牵引控制
C.
列车编组
D.
技术规格
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