2、The airplanes were delivered with recommended inspection programs to keep them airworthy.

A. 　速度-高度纠错系统通过修正实际速度尽可能保持飞机安全飞行高度。

B. 　通过修正实际速度尽可能保持飞机安全飞行高度的任务由速度-高度纠错系统完成。

C. 　速度-姿态修正系统通过修正速度的影响,自动保持安全的飞行姿态。

A. 　当反推收回时,确保飞机远离人员

B. 　当反推放出时,确保人员远离飞机

C. 　当反推运动时,确保人员远离飞机

A. 　 The manufacturer may offer procedures to provide feedback on unairworthy conditions that were
discovered to be complied.

B. 　 In order to discover any unairworthy conditions when compiling, the manufacturer shall comply with
certain procedures.

C. 　 The manufacturer may set up 'procedures to feedback unairworthy conditions discovered when
complying.

A. 　 This document provides supplementary information to the applicable manual.

B. 　 This document provides primary information to the applicable manual

C. 　 This document provides special information to the applicable manual.

A. 　在开始检查前,你应该拆除接近门和整流罩。

B. 　 在开始检查前,你应该拆除登机门和整流罩。

C. 　在开始检查前,你应该拆除舱门和组件。

A. 　 The function and operation of each unit in the system should be described. The location of the units
shouldn’t' be described.

B. 　 The function, operation and location of each unit in the system should be deleted.

C. 　 The function, operation and location of each unit in the system should be described. (描述)

A. 　维护信息需要连续跟踪

B. 　维护信息需要持续提供

C. 　维护信息需要不断更新

A. 　 There are trim tabs at the rear of both ailerons.

B. 　 There are trim tabs at the rear of both flaps.

C. 　 There are trimmable stabilizers at the rear of both elevators.

A. 　 If the first coat is damaged, do a repair.

B. 　 lf the protective finish is damaged, do a repair.

C. 　 lf the primer layers are damaged, do a repair.

A. 　 If the pump is not suitable(不可用) to be used, replace it

B. 　 If the pump is outmoded, replace it