1374.If the error is more than 3 deg.,calibrate the compass.

A. On pressurized aircraft,the cabin air is distributed with a system of air ducts leaded from the pressurization source into and throughout the cabin.Typically,air is ducted to and released from ceiling ventilation.

B. Distribution of cabin air on pressurized aircraft is managed with a system of air ducts leading from the pressurization source into and throughout the cabin.Typically,air is ducted to and released from ceiling vents.

C. On pressurized aircraft cabin air is distributed with a system of air ducts leaded from the pressurization source into and throughout the cabin.Typically,air is ducted to and released from ceiling flap.

A. Do not put different topics in the same paragraph.

B. Do not provide different meanings in the same parentheses.

C. Do not arrange different contents in the same chapter.

A. The compressing of the spring can cause the valve to open.

B. There is no change of the valve when the spring compresses.

C. After compressing of the spring,the valve goes to closed position.

A. When some new kind of situation occurs,the operator should communicate openly with the manufacturer.The manufacturer should supply the operator solid assistance.

B. When the new situation gets worse,it should build the open communication between the operator and manufacturer.The operator claims the situation to get the feedback from the manufacturer.

C. When something new happens,open interconnection should exist between the manufacturer and the operator.The operator should report to the manufacturer to obtain effective discount.

A. 逐步打开充电装置上的堵盖。

B. 逐渐打开充电装置上的旋塞。

C. 逐步打开充电单元上的开关。

A. 技术文本常常包含很长的词组,这些词组在一个句子中具有一种词性的功能。

B. 技术文件常常由很长的词汇构成,这些词在句子中的词性只有一种。

C. 技术文件常常包括长词组,在同一句子中这些词的功能是一种词性。

A. 确保座舱温度保持恒定。

B. 确保座舱压力保持不变。

C. 确保座舱湿度保持稳定。

A. If an AC circuit consists of resistance only,the value of the impedance is the same as the resistance.

B. If an AC circuit consists of impedance only,the value of the capacitance is the same as the impedance.

C. If an DC circuit has capacitance only,the value of the resistance is the same as the capacitance.

A. 给出控制面板的原理图或图片。

B. 画出娱乐面板的示意图或图片。

C. 提供仪表板的图纸或图片。

A. The arid welding coat may be polished with thin abrasive paper to hold a smoother layer.

B. The waterless painting coat may be worn with precise abrasive paper for a smoother surface.

C. The dried spray coat may be sanded with fine sandpaper to obtain a smoother finish.