断路器接地金属外壳应有明显的接地标志，接地螺栓不小于（），且接触良好。A.8m B. 发布时间：2019-08-20 10:05 │ 来源：www.tikuol.com 题型：单项选择题 问题： 断路器接地金属外壳应有明显的接地标志，接地螺栓不小于（），且接触良好。A.8mB.10mC.12mD.14m
题型：单项选择题 Job Opportunities 1.Full time secretary position(职位).Applicants（申请者）should have at least 2 years’ experience and be able to type 60 words in a minute. No computer skills required. Apply in person at United Business Ltd,17Browning Street, Leeds.2.Computer Trained secretaries: Do you have experience working with computers? Would you like a full time position working in an exciting new company? If you want to know more about us, call at 0459-7986754.3. Weekend work available: We are looking for retired people who would like to work part time on weekends for Rubber Last Group Ltd. Duties include answering the telephone and giving customers’ information. For more information call us at 0113-674126. 4. Teaching assistants needed: Hania’s Playschool need 2 young teaching assistants to help with history classes from 9 am to 3 pm. Applicants should have references. For more information please visit www.haniaplayschool.co.uk.小题1:Which position is most suitable for a 60-year –old man?A．Full time secretaryB．Weekend work in Rubber Last Group LtdC．Teaching assistants in Hania’s PlayschoolD．Computer Trained secretaries小题2:If you are good at computer and just graduated from university (History degree), which jobs can you apply for?A．Job 1and2B．Job 2and 3 C．Job 2 and4D．Job 1 and 3小题3: How can you get more information if you are interested in the position of a full-time secretary position?A．By telephone. B．In personC．By Internet.D．By letter 查看答案
题型：单项选择题 下列关于止回阀说法错误的是（）。A、止回阀的作用是自动控制流体的流动方向B、止回阀能根据阀前阀后的压力差而自动开启C、安装时有严格的方向性D、弹簧升降式止回阀只能安装在水平管线上 查看答案
题型：单项选择题 在CRH1型动车组IDU上，停放制动图标显示的颜色状态的含义分别是（）。A.全绿显示表示停放制动已正常施加B.绿边框显示表示停放制动已正常缓解C.灰边框显示表示停放制动状态不明 查看答案