4.The load is applied axially.

A. 需要注意警告信息和限制条件,例如起落架和控制舵面锁的使用、最小转弯角度、前起落架最大牵引和推动负载等。

B. 需要注意相关预防措施和限制信息,例如起落架和控制舵面锁、最小转弯半径、前起落架最大有效推拖载荷等的使用。

C. 需要注意相关预防措施和限制信息,例如起落架和控制舵面锁的使用、最小转弯半径、前起落架最大推拖负载等。

D. C.需要注意相关预防措施和限制信息,例如起落架和控制舵面锁的使用、最小转弯半径、前起落架最大推拖负载等。

A. On some turbopropeller powered airplanes,the condition lever is the primary control for starting and stopping the engine.On others,it is the primary control used to set engine and propeller speed.

B. On some piston powered airplanes,the condition lever is the secondary control for starting and shutting the engine.On others,it is the secondary control used to set engine and piston speed.

C. On some turbopropeller powered airplanes,the status lever is the secondary control for starting and shutting the engine.On others,it is the secondary control used to set engine and propeller speed.

A. 确保区域测试没有人。

B. 确保测试区域没有人。

C. 确定任何人可以进入考试区域。

A. 正常俯仰控制法则基本上是负载系数的闭环控制,包括飞行发展保护。

B. 正常俯仰控制法基本上是负载厂家的闭环控制,包括飞行包线保护。

C. 正常俯仰控制法则基本上是负载系数的闭环控制,包括飞行包线保护。

A. When you try to change a word,make sure that the substitute you choose doesn't replace the meaning of the sentence.

B. Make sure that the chosen replacement word will not vary the implication of the sentence if you replace a word.

C. When you replace a word,always make sure that the alternative you select does not change the meaning of the sentence.

A. If the airframe manufacturer makes any alteration to the component of the text or illustrations,the component manufacturer will use its own masthead.

B. If the airframe manufacturer changes the component manufacturer's text or illustration in any way,he shall apply his own masthead.

C. If the airframe manufacturer alters the text or illustrations of the component manufacturer's in any way,it's own masthead shall be used.

A. Replace the PTU check valve.

B. Interchange the PTUone-way valve.

C. Change the PTU return valve.

A. 要使刹车系统引气,请通过手泵手柄的整个行程来操作。

B. 要给刹车系统引气,操作手泵手柄通过系统的全部行程。

C. 全行程操作手泵手柄以给刹车系统引气。

A. 不要打印标题页的后一页。

B. 不要印在扉页的背面。

C. 不要在标题页后面涂改。

A. Use the clean solvent again to leave the oils on the surface.

B. If necessary,clean the oils by applying clean solution.

C. Remove the oils,if necessary,by applying clean solvent again.