508、Reserve shall be computed as 45 minutes at the cruise power to be used for the flight.

A. 　 The emergency exit doors are known as, backup exit and they should not be used in special condition

B. 　 The emergency exit doors are used for the escape and are not used as the normal exits.

C. 　 The emergency exit doors are applied to board that are not usually used for exit.

A. 　 English is not often the mother language of the readers of technical files.

B. 　 English is not often the private language of the readers of technical books.

C. 　 English is not often the required language of the readers of technical pamphlet.

A. 　 The exit doors are mainly used for passenger boarding

B. 　 The exit doors are only used for evacuation.

C. 　 The exit doors are not only used for the passengers to evacuate from the airplane but also used for normal exit。.

A. 　变更一些词性的缩写,使其与标准缩写一致。

B. 　一些词性缩写的变化与标准缩写一致。

C. 　更新标准缩写使其满足一些词性缩写变更的要求。

A. 　每个电干扰盘的后部都有一个灵活的汇流条组件

B. 　每个电干扰盘的后部都有一个固定的汇流条组件。

C. 　每个配电盘的后部都有一个固定的汇流条组件。

A. 　 When hydraulic power is supplied, keep persons and equipment away control surfaces and landing gear.

B. 　 When supplying power to the hydraulic system, persons and equipment should be away from all control
surfaces and landing gear.

C. 　 Persons and equipment shall be away from all hydraulic system control surfaces and landing gear when
supply pressure.

A. 　 Add oil to correct level.

C. 　 Add fuel to proper level.

A. 　 lt is necessary to generally check these areas.

B. 　 lt is imperative to regularly inspect these areas.

C. 　 Frequent inspection of these areas is necessary.

A. 　推荐的燃油节约信息应整合到本节中,以便向飞行员展示如何在飞行过程中尽量减少燃油的使用。

B. 　A 推荐将燃油节约信息整合到本节中,为了向飞行员展示在飞行中尽量减少燃油的使用。

C. 　此节整合了推荐的燃油使用信息,以便向飞行员展示如何在飞行过程中做到尽量少的使用燃油。

A. 　You must obtain medical help as soon as you can.

B. 　 You must obtain medical help as more as you can,

C. 　You must obtain medical instructions as soon as you can.