Make sure that the landing-light cutoff-switch power connection is safe.

A. 防腐可能有很多原因。

B. 腐蚀可能有很多原因。

C. 腐蚀可能有很多防腐措施。

A. The items in the Emergency Procedures check list are determined to be essential in aid of the pilot in an emergency and should be limited to the minimum number.

B. A limited number of items in the Emergency Procedures check list are determined to be essential to aid the pilot in an emergency.

C. To aid the pilot in an emergency, it is determined that the Emergency Procedures check list should contain only essential items.

A. The condition of the radome is very important for its performance.

B. The condition of the antenna influences its properties greatly.

C. The condition of the radar has an important effect on its characteristics.

A. 供气系统被多个子系统共用，能够为水箱加压以确保流体的流动。

B. 空气供应系统是某一个子系统独用的部分，其作用是为供应罐加压以确保流体流动。

C. 空气供应系统是多个子系统共用的部分，其作用是为供应罐减压以延缓流体流动。

A. 如果安装了某一个设备，那么要说明安装它的重要性。

B. 如果安装了其中一个设备，则说明它是否是必需的设备。

C. 如果安装了两个设备，需要说明其必要性。

A. The airworthiness and safe operation of an airplane is assured if it＇s used as its original design purpose, properly inspected and carefully maintained.

B. The manufacturer is intended to utilize an airplane with sound inspection and maintenance practices because that is the basis for assuring the airplane remains airworthy and safe to operate.

C. The airplane is designed to be used as the manufacturer＇s intention. Users shall properly inspect the airplane and do sufficient maintenance to assure its airworthiness and operation safety.

A. 内部喇叭打到开位并且保持在开位，当探测器有动力的时间够长，并且烟雾传感器探测到烟雾。

B. 只有探测器有电，并且烟雾传感器探测到烟雾，内部开关才会打开到开位并且保持在开位。

C. 只要探测器有电源并且烟雾传感器探测到烟雾，内部的喇叭就会打开并且保持在开位。

A. 保持安静以避免错过信号的声音。

B. 保持安静以避免混淆声音的信号。

C. 保持安静以避免丢失声音信号。

A. Words with lowercase letters are allowed in STE.

B. STE dictionary is permitted to use the UPPERCASE letter word.

C. In STE, a word in capital letters means that it is approved.

A. 当你拆下罩环时，小心不要损坏法兰组件。

B. 当你拆下冠环扇形件时，小心不要造成法兰盘损坏。

C. 拆下法兰盘时，小心不要造成冠环扇形件损坏。