在发动机启动前，远离排气区域。

A. Deflate the pressure of tire to the certain value.

B. Provide pressure with nitrogen to the required value for the tire.

C. Depressurize the tire to the demanded value.

A. You can use the module to disassemble the disassembly fixture.

B. The module that you can use to disassemble is the disassembly fixture.

C. You can use the disassembly fixture to disassemble the module.

A. 确报开关的保护盖已经盖好。

B. 确保舱门上装有保险系统。

C. 查看开关是否安装了保险。

A. The following safety precautions can be used to avoid explosion.

B. The safety measures that follow are available to inflammable items.

C. The safety precautions that follow are applicable to explosive items.

A. Always use test element that can cause sparks.

B. Never use test equipment which can cause cracks.

C. Do not use test equipment that can cause sparks.

A. 盘旋着陆机动指当不能或不需直线仪表进近时飞行员为使飞机对准着陆跑道所做的机动动作。在塔台管制机场，必须得到空中交通管制许可，并且建立了机场目视参照后才能做此机动。

B. 盘旋着陆机动指当不能或不需直线仪表进近时飞行员为使飞机对准着陆跑道所做的机动动作。在塔台管制机场，必须得到空中交通管制的间隔，并且建立了机场目视参照后才能做此机动。

C. 盘旋着陆机动指当不能或不需直线仪表进近时飞行员为使飞机能在着陆场矫正所做的机动动作。在塔台管制机场，必须得到空中交通管制的间隔，并且建立了机场目视参照后才能做此机动。

A. When simulating altitude, make sure you have alternate ATC transponders in active mode.

B. Make sure that the ATC transponders are in standby mode when you simulate altitude.

C. It is optional to keep the ATC transponders in ready mode during altitude simulation.

A. 应说明最小机组人数，以及如果需要一名以上飞行机组人员时，还应说明每个机组人员的职责。

B. 需要一名以上飞行机组人员时，应说明最小机组人数和每个机组人员的职能说明。

C. 请按要求说明机组成员人数，以及每位机组成员的职能。

A. Using a locally made tool to do the test is also accepted.

B. You can also make a local tool to do this test.

C. You can also make a tool to do this test locally.

A. Make sure the cabin pressure relief valve is open.

B. Make sure the cabin pressure outflow valve is open.

C. Make sure the cabin pressure bypass valve is open.