A、 这些单位和组件收集、监管、并向乘客和空乘人员输送氧气。
B、 这些组件和部件用于储存、调节并向乘客和机组人员输送氧气。
C、 这些单位和组件储存、管制、并向乘客和地面机组输送氧气。
答案：B
A、 这些单位和组件收集、监管、并向乘客和空乘人员输送氧气。
B、 这些组件和部件用于储存、调节并向乘客和机组人员输送氧气。
C、 这些单位和组件储存、管制、并向乘客和地面机组输送氧气。
答案：B
A. 阀门故障的主要原因是液压油的磁屑。
B. 阀门故障的主要原因是燃油的磁屑。
C. 阀门故障的主要原因是液压油的污染。
A. If the brackets are not damaged, continue the procedure.
B. In the absence of damage to the brackets, recall the process.
C. When bracket damage occurs, recall the procedure.
A. Obey the safety precautions when you do work with high voltages.
B. Obey the safety warnings when you do work with high impedance.
C. Obey the safety cautions when you do work with high capacitance.
A. When the weight or torque of the aircraft change, illustrate how to keep this record in order to save the exact initial values to measure the weight and heavy center in normal flight.
B. Explain how to maintain this record when changes to the weight or moments of the airplane are made so that accurate starting data is available to calculate the weight and center of gravity during normal operation of the airplane.
C. When the changes to the mass or momentum occur, show the way to hold this record to get the beginning information easily to compute the mass and gravity core.
A. Check valve, that allows fluid blows in one direction completely but blocks all flow in the other direction, is a pneumatic or hydraulic system component.
B. Oneway valve is a hydro or gaseous system component that allows fluid flows in one direction freely but blocks all flow in the opposite direction.
C. Check valve is a hydraulic or pneumatic system component that allows full flow of fluid in one direction but blocks all flow in the opposite direction.
A. Identify the disassembled parts with tags.
B. To notice the removed parts with the lable.
C. To mark the assembled parts with the cards.
A. 因为轴的损坏，导致泵不运转。
B. 由于泵的设计问题，导致其停止运转。
C. 泵运转失常的原因在于叶轮的损坏。
A. Some jobs or processes consist of several basic operations, with a number of minor steps or work items under each.
B. Some basic operations with a few small steps or work items are included in some work or processes.
C. Some jobs or processes constitute a few basic operations, with several minor steps or work items under each.
A. 能够在紧急情况下改善操作安全性的要求和所推荐的空速(以及适用该空速的飞机配置)可被列在本节开头或列在《应急程序检查单》中。
B. 应在本节开头或《应急程序检查单》中列出，在紧急情况下能够避免事故的所需和建议的空速（以及适用于这些空速的飞机构型）。
C. 所需空速以及被认为可以在紧急情况下提高操作安全性的推荐空速(和对应的飞机构型)应在本节一开始就列出，或包含在《应急程序检查单》中。
A. 当左侧调节组件关闭时，总管也可以将空气送到飞行条件空气分配管路。
B. 在左空调组件关闭时, 总管也可将空气送到驾驶舱空调空气分配管路。
C. 如果左空调组件损坏, 总管也可将空气送到驾驶舱空调管路。
