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安全保护距离safe protection distance
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电气安全防护的基本要素包括( )。
A.电气绝缘、安全距离、安全载流量、标志B.保护绝缘、防护距离、安全载荷、安全标识C.电气绝缘、防护距离、安全载流量、安全标识D.保护绝缘、安全距离、安全载荷、标志
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The distance protection is applied to protect ( ).
A.transformersB.generatorsC.transmission linesD.buses
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In the financing of international trade L／C is a reliable and safe means of payment,()trade with unknown buyers and giving protection to both sellers and buyers.
A、speedingB、facilitatesC、facilitatingD、conveniencing
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______is the speed of a vessel allowing time for effective action to be taken under prevailing circumstances and conditions to avoid a collision and to be stopped within an appropriate distance．A.Safe speedB.Economic speedC.Proper speedD.Navigation speed
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个完整的信息安全保障体系，应当包括安全策略（Policy）、保护（Protection）、检测（D etection）、响应（Reaction）、恢复 Restoration）五个主要环节。
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故障安全控制系统FSC的英文全称是（）。A、Fail safe control systemB、Fail system controlC、Fail safe computerD、Fail safe control
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Sailors should know the （）(安全工作负荷量)of derricks.A、safe working loadB、safety work loadC、safe work loadD、safe working loading
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判断题个完整的信息安全保障体系，应当包括安全策略（Policy）、保护（Protection）、检测（D etection）、响应（Reaction）、恢复 Restoration）五个主要环节。A
对B
错
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单选题The Navigation Rules state that a vessel shall be operated at a safe speed at all times so that she can be stopped within（）.A
the distance of visibilityB
1/2 the distance of visibilityC
a distance appropriate to the existing circumstances and conditionsD
the distance that it would require for the propeller to go from full ahead to full astern
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单选题Every vessel shall at all times proceed at a safe speed so that she can（）.A
take proper and effective action to avoid collisionB
be stopped within a distance appropriate to the prevailing circumstances and conditionsC
neither A nor BD
both A and B
考题
名词解释题目标距离target distance
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