Make an entry in the log card.

A. In some cases, for complex aircraft, special training should be conducted so that the aircraft and its systems can be maintained properly.

B. Sometimes, especially for complex airplanes, it may be necessary to provide specific training in the proper maintenance of the airplane and its systems.

C. Sometimes, for particularly complex airplanes, it is required to provide special training so as to perform proper maintenance of the aircraft and its systems.

A. 确保液压蓄压器的氮气灌充压力是正确的。

B. 确保刹车蓄压器的氮气增压压力是正确的。

C. 确保液压蓄压器的氮气的灌充程序是正确的。

A. The removal/installation portion shall state clearly the sequence of steps required to remove and reinstall a component or unit. This portion shall also state precautions to be obeyed.

B. The removal/installation portion shall state clearly the sequence of steps required to remove and reinstall a component or unit. This portion shalln’t include precautions to be obeyed.

C. The removal/installation portion shall hardly state the sequence of steps required to move and reinstall a component or unit. This portion shall also include precautions to be watched.

A. Use the upper latch mechanism to lock the lower display unit in the middle.

B. The latch mechanism at the top is used to secure the center display unit on the bottom.

C. The center lower display unit is installed with the latch mechanism at the top.

A. 4个轴承支撑N2轴的后部。

B. 第4号轴承支撑N2轴的后部。

C. 第4号轴承支持N2轴的前部。

A. 封面标题和适当的飞机内容应首先在手册的封面或书脊(或两者)上表现出来。

B. 封面标题和适用的飞机设计应在手册的封面或书脊（或两者）上永久显示。

C. 封面标题和适用的飞机名称应突出显示在手册的封面或书脊（或两者）上。

A. A Weight and Moment Limit diagram shall be used to describe the c.g. limits.

B. The maximum weight moment envelope diagram should be used to describe the c.g. limit of the aircraft.

C. A Weight and Moment Limit diagram shall be used to describe the maximum c.g. limit.

A. 当达到预设阈值时，烟雾探测器通过客舱内部通信数据系统触发警告。

B. 当预设的温度达到时，烟雾探测器会发出警告，通过客舱内部通信数据系统。

C. 当预设的数值达到时，客舱内部通信数据系统里的烟雾探测器会发出警告。

A. If the airplane has not been tested for twirl characteristics and recovery methods, a discussion shall be included on the limited conditions for preventing spins and the possible best recovery techniques, and it shall be stated that no testing has been conducted and that the recovery techniques are based on the manufacturer＇s best comment.

B. If the airplane has not been tested for spin characteristics and recovery methods, a discussion of prevention of spins and probable best recovery techniques will be included with a notation that no tests were made and the recovery techniques are based on the best judgment of the manufacturer.

C. If the aircraft has not been expanded for spin features and recovery ways, prevention of spin and possible best recovery techniques are discussed and it is determined that no exams have been performed and that recovery techniques are based on the manufacturer＇s best judgment.

A. STE是为了帮助读者理解他们所阅读的英语内容，特别是当这些读者的母语不是英语的时候。

B. STE开发了帮助读者理解他们所阅读的英语内容的规则，尤其是当这些读者的母语不是英语的时候。

C. STE是为了帮助英语文档的读者理解他们所阅读的内容而开发的，特别是当这些读者的母语不是英语的时候。