Equipment without significant effect on the weight or balance of the airplane need not be listed.

A. The condenser decreases the temperature of the air in the air conditioning pack to below the dew point, changing water vapor into liquid.

B. The cooler lowers the air temperature to the boiling point in the air conditioning module, which can transfer the steam into water.

C. The evaporator turns steam into liquid by reducing the temperature of the air in the air conditioning pack to the evaporating point.

A. 找到新的故障件。

B. 发现新的排故方法。

C. 找到新的排故程序。

A. Aluminum wire should not be attached to engine mounted accessories or used in areas having corrosive fumes, severe vibration, mechanical stresses, or where there is a need for frequent disconnection.

B. Aluminum line should not be connected to attachments which are mounted on the engine and also not be applied in domains where corrosive gases, serious oscillation, mechanical forces exist or where it is necessary to disconnect frequently.

C. Aluminum cable should not be linked to accessories installed on the engine. It should also not be used in the event of corrosive fumes, serious vibration, mechanic loads or the place where frequent disconnections are required.

A. A reprint is a second or executive version of a manual that replaces a previous version.

B. A reprint is a succeeding or pursuant version of a manual that supersedes the former version.

C. A reissue is a second or subsequent edition of a manual which supersedes the preceding edition.

A. The damper prevents abnormal movement of the control.

B. The control is protected from unusual movements by the damper.

C. The damper prevents sudden movement of the control.

A. The main gear doors are pneumatically sequenced to remain open while the gear is extending or retracting.

B. The main gear doors are hydraulically sequenced to remain open while the gear is extending or retracting.

C. The main gear doors are automatically sequenced to remain open while the gear is extending or retracting.

A. Mixed category consists of many parts and components, five kinds of these parts have been selected.

B. Miscellaneous category consists of many parts and components, five kinds of these parts have been selected.

C. Complicated category consists of many parts and components, five kinds of these parts have been selected.

A. 专用设备 - 本章应包括前几章未包括的设备和系统。

B. 特殊用途设备 - 这一章应包括这些设备和系统，不包括前面的章节。

C. 特种设备 - 该章节应加入这样的设备和系统而不是前述所有章节。

A. 推荐的燃料节约程序应包含一个告诫，如果适用的话，制造商推荐的功率设置必须在磨合期内使用。在新的和新大修的发动机的磨合期必须使用制造商推荐的功率设置。在这期间使用经济的动力设置可能会对发动机的寿命造成损害。

B. 如适用，推荐的节油程序应包括相应的告诫，提醒在全新的和刚大修过的发动机磨合期内必须使用制造商推荐的功率。此段时间使用经济功率可能会损害发动机寿命。

C. 建议的燃油节约程序应包含一个警告（如适用），即在新发动机和新大修发动机的试车期内必须使用制造商建议的功率设置。在此期间使用经济型功率设置可能会对发动机寿命造成不利影响。

A. 如果维护消息未在"电流状态"中显示，则出现了连续性故障。

B. 如果维护信息未在"当前状态"中显示，则出现了间歇性故障。

C. 如果维护消息未在"当前状态"中显示，则出现了次级故障。