确保所有紧急出口没有不需要的物品。

A. 为了获得正确的间隙，需要增加特殊的垫片。

B. 为了获得正确的间隙，按需增加特殊的垫片。

C. 要获得正确的间隙，需要增加特定的垫片。

A. The seat shall be lifted to leave the track locked.

B. Lift the seat until it is away from the track locks.

C. Eject the seat until it is isolated from the track locks.

A. Do not open the entry door if the wind-speed is dangerously high.

B. Do not open the cargo door unless there is dangerous wind.

C. Do not open the cargo door if the wind-speed is dangerously high.

A. Do not alleviate pressure to the aft flange.

B. Do not apply pressure to the aft flange.

C. Do not apply pressure to the aft screw bolt.

A. Review the failures report from the logbook and related fault messages with center DU or CDU, debrief the flight crew for faults and report them for handling.

B. Either the logbook or center DU/CDU shall be checked for faults records and related fault information, then review the faults reported by the flight crew and take actions.

C. Consult the failures report from the logbook to find the related information on center DU or CDU, listen to the crew for faults report. Report faults and handle them.

A. 可以通过使用抹布沿钢索擦拭的方法，实现对钢索关键疲劳区域的仔细检查。

B. 可以通过沿电缆缠绕碎布的方式来对电缆关键疲劳区域进行仔细检查。

C. 在钢索严重疲劳区域进行近距离检查，可沿钢索用棉布清洁。

A. 当结冰情况超过飞机及其防冰系统的认证能力时，此信息应结合其他信息一起用于判断结冰情况。

B. 这些信息应与其他信息同时显示，用于辅助判断结冰情况是否超出飞机及防冰系统的认证能力。

C. 应将此信息与帮助识别结冰情况的信息一起呈现，这种结冰情况可能超出飞机及其防冰系统的证实能力。

A. 文件应该经常修订。

B. 文件应该易于修订。

C. 文件必须容易理解。

A. 描述飞行仪器系统时，应简要描述说明任何新型飞行工具的工作法则。

B. 描述飞行仪器系统时，应简要描述并说明任何新型飞行仪器的工作原理。

C. 描述飞机飞行仪表系统时，应对任何新型飞行仪表进行简要描述并解释其工作原理。

A. The anti-leakage valve prevents oil leakage when you disconnect the oil tube from the anti-leakage valve to the lubrication unit.

B. When you reconnect the oil tube from the anti-leakage valve to the lubrication unit, the anti-leakage valve stops oil leakage.

C. When you discharge the oil tube from the anti-leakage valve to the lubrication unit, the anti-leakage valve protects oil leakage.