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移动式设备（portable equipment）
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X.25协议规定了以【 】工作的用户数据终端设备(Date Terminal Equipment, DTE)与通信子网的数据电路端接设备(Date Circuit-terminal Equipment, DCE)之间的接口标准。
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The use of portable electrical equipment in the pumproom on tank barges is prohibited unless ______．A.The pumproom is gas-freeB.Spaces with bulkheads common to the pumproom are either gas-free，inert，filled with water，or contain grade E liquidC.All other compartments in which flammable vapors and gases may exist are closed and securedD.All of the above
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The portable radio apparatus means ______．A.the radio apparatus fitted on the portside．B.the radio with a portable equipment．C.the radio equipment which is easily movable．D.the portable radio with some apparatus
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OEE英文全称是什么？（）A、Overall Equipment Efficiency全局设备效率B、Opto-Electronic Element光电元器件C、Overall Equipment Environment全局设备环境D、Operating Equipment Effectivity设备可操作性
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The control of communications test equipment should be clearly addressed by security policy for which of the following reasons?通信测试设备的控制应该通过安全策略明确的原因是什么？（）A、Teste quipment can be used to browse information passing on anetwork.测试设备可以用于浏览在网络上传递的信息B、Test equipment is difficult to replace if lost or stolen.测试设备如果丢失或被盗很难替换C、Test equipment is easily damaged.测试设备很容易被损坏D、Test equipment must always be available for the maintenance personnel.测试设备对于维修人员必须是永远可用的
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单选题You are ordering ship’s stores. Which statement is TRUE?（）.A
Stores such as line，rags，mattresses，linens，etc. must be treated to be fire retardantB
Stores certified for use on uninspected vessels may be identified by the certification number used by Underwriter's LaboratoriesC
A portable container of a flammable liquid used as fuel for portable auxiliary equipment must be stowed in a paint locker or at a designated open locationD
Acetylene may be in a ship's storeroom in quantities not exceeding 6000 cubic feet
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单选题The portable radio apparatus means（）.A
the radio apparatus fitted on the portsideB
the radio with a portable equipmentC
the radio equipment which is easily movableD
the portable radio with some apparatus
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单选题If a small fire initially breaks out in the engine room bilges, in which of the following sequences should the fire extinguishing agents or systems be used?（）A
Fixed CO2,semi-portable CO2, then hand portable CO2B
Semi-portable CO2, fixedCO2, then hand portable CO2C
Hand portable, semi-portable CO2, then as a last resort the fixed CO2 systemD
Hand portable, fixed CO2, then as a last resort the semi-portable CO2
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单选题排烟器具分为（）两大类。A
机械式和非机械式排烟设备B
半固定式排烟设施和移动式排烟设备C
固定式排烟设施和移动式排烟设备D
机械式排烟设施和移动式排烟设备
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