Adhere to the safety instructions.

A. 那些能在地面或水上操控飞机，并能在飞行中伸出起落架的装置和部件。包括刹车，车轮，浮子，门，减震支柱，轮胎，连杆，位置指示和警告系统。

B. 那些能在地面或水上支撑和控制飞机行驶方向，并能在飞行中收回和储存起落架的装置和部件，包括刹车、机轮、浮筒、门、减震支柱、轮胎、连杆、位置指示和告警系统。

C. 在地面或水中提供支持和操纵飞机的装置和部件，并使主齿轮在飞行中收起和存放的装置和部件。包括刹车，车轮，浮子，门，减震支柱，轮胎，连杆，位置指示和警告系统。

A. The air pressure is almost correct.

B. The air pressure is too low.

C. The air pressure is too high.

A. when the inspector asks, please show your license and obligations.

B. Please show your license and qualification authorization when asked by the inspector.

C. Please show your license and quality duties when asked by the inspector.

A. 因为轴的损坏，导致泵不运转。

B. 由于泵的设计问题，导致其停止运转。

C. 泵运转失常的原因在于叶轮的损坏。

A. The manufacturer shall prepare all text in either one or two columns with justification at his own discretion , but, two columns are preferable for readability.

B. Manufacturers shall prepare all text both in one and two columns separately; however, two columns are better for reading.

C. According to the manufacturer＇ explanations, all text shall be prepared in one or two columns; however, two columns have better visual effect.

A. Handbooks shall be revised easily.

B. Handbooks should not be revised easily.

C. Handbooks should be developed easily.

A. 段落之下设有子段落时，可参考本规范中子段落的编排顺序，无需完全遵守。

B. 如果一个段落包含分段落，那么本规范中分段落的呈现指令仅作为指导，不作为步骤遵循。

C. 如果一个段落包括若干子段落，那么本规范中子段落表述的指令仅作为指引而遵循。

A. 允许的最大差值为5mm。

B. 最小容差为5mm。

C. 允许的平均偏差为5mm.

A. The Unusual Procedures Check List should be in concrete, abbreviated form.

B. The Emergency Procedures Check List should be in constant, abbreviated form.

C. The Abnormal Procedures Check List should be in concise, abbreviated form.