Explain how to avoid and notice fuel contamination.

A. Always remember that the main subject of STE is for readers to hardly grasp each sentence they read.

B. Always remember that the major function of STE is to let readers comprehend every sentence they read barely.

C. Always remember that the primary objective of STE is that readers immediately understand each sentence that they read.

A. 配电系统包括通风沟、阀门、滑轨、热交换器、操纵装置等项目。不包括使用系统的供应阀。

B. 分配系统包括管道、阀门、作动筒、热交换器、控制器等。不包括输往用户系统的供应阀。

C. 分布系统包括排风管道、阀门、制动弹簧、热交换器、控制器等项目。不包括使用系统的供应阀。

A. The smoke sensor in each detector monitors when the smoke density is above a previous limit. If the density keeps higher than the limit for about eight seconds, the sensor set the detector to the alarm condition.

B. The smoke sensor in each detector monitors for smoke density above a preset limit. If the density stays above the limit for appropriately eight seconds, the sensor sets the detector to the alarm condition.

C. The smoke transducer monitors for smoke density above a presumed limit of each detector. If the density remains over the limit about eight seconds, the transducer turn the detector to the alarm condition.

A. 警告：关闭舱口前，确保机组休息室中没有人员。舱口关闭时，舱室没有气流，存在中毒的风险。

B. 警告：关闭舱门前，确保机组休息室中没有人员。舱口关闭时，舱室没有气流，存在窒息的风险。

C. 警告：关闭门栓前，确保机组休息室中没有人员。舱口关闭时，舱室没有气流，存在缺氧的风险。

A. 任何情况都可以使用手动控制。

B. 在紧急情况下使用手动控制。

C. 在紧急情况下使用手册来控制。

A. Do not open the container if you are instructed that high pressure is dangerous.

B. If it states on the container that the pressure inside is high, do not open it.

C. If the instructions give a warning about dangerous pressure, do not open the container.

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. 所有三个螺栓孔必须与燃油管匹配。

B. 所有三个支架孔必须与燃油管对齐。

C. 所有三个支架孔必须与燃油管齐平。

A. 然而“紧急情况”反而总是排除需要立即快速反应的故障，例如整个动力装置故障、火灾或烟雾或机舱快速减压。

B. 然而“紧急情况”几乎总是包括需要立即快速反应的故障，例如整个动力装置故障、火灾或烟雾或机舱快速减压。

C. 然而“紧急情况”几乎总是排除需要立即快速反应的故障，例如整个动力装置故障、火灾或烟雾或机舱快速减压。

A. If there is no approval of the FAA Oversight Office that manages the airplane model Type Certificate, anyone cannot change or delete these inspection features that are compulsive.

B. These inspection features can be changed or deleted if they don＇t get approval of the FAA Oversight Office that is responsible for the airplane model Type Certificate because they are mandatory.

C. If changing or deleting of these inspection features is approved by the FAA Oversight Office that manages the airplane model Type Certificate, they are mandatory.