单选题文件必须易于修改。

A、 Documents must be temporarily edible.

B、 Documents must be readily revisable.

C、 Documents must be permanently durable.

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单选题燃油和氧气的混合物会引起爆炸。

A、A mixture of fuel and oxygen can cause an explosion.

B、A mixture of fuel and nitrogen can cause an burn.

C、A mixture of gas and oxygen should cause an explosion.

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单选题用手摇泵将系统加压到 150巴。

A、Depressurize the system to 150 bar with the handle pump.

B、Pressure the system to 150 bar with the hand actuator.

C、Pressurize the system to 150 bar with the hand pump.

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单选题对制造商认为的典型属于非计划性的维护任务所需说明在 “非计划维修”标题下。

A、The instruction necessary for performing maintenance tasks that the manufacturer considers to be typically unscheduled is entitle "Abnormal Maintenance".

B、These instructions are titled 'Unscheduled Maintenance' and are necessary for performing maintenance tasks that the manufacturer considers to be typically unplanned or unexpected.

C、The instruction necessary for performing maintenance tasks that the manufacturer considers to be typically nonroutine is entitle "Abnormal Maintenance".

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单选题应包括专用工具、设备和材料。

A、Shall include dedicated tools, items and materials.

B、Common tools, equipment and materials shall include.

C、Special tools, equipment and materials shall be included.

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单选题燃油渗漏会降低发动机性能。

A、Fuel leaks can decrease engine performance.

B、Oil leaks can increase engine performance.

C、Fluid leaks can decrease engine efficiency.

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单选题泵安装在液压马达后面。