A、 After the system is pressurized, the elevators will drop down no matter where the rigging pin is installed.
B、 Without the rigging pin, the elevators will go down when there is no pressure in the system.
C、 The rigging pin can prevent the elevators from retracting and expanding when the system is de-energized.
答案：B
A、 After the system is pressurized, the elevators will drop down no matter where the rigging pin is installed.
B、 Without the rigging pin, the elevators will go down when there is no pressure in the system.
C、 The rigging pin can prevent the elevators from retracting and expanding when the system is de-energized.
答案：B
A. The items described, their function explained and how they are operated must be standard.
B. It describes definition of standard items and explains their function and how they are operated.
C. Standard items, including their function and how they are operated are introduced.
A. Do not stretch the seal when installing it.
B. Do not over-extend the seal when installing it.
C. Do not bend the seal when installing it.
A. 所有发行物应使用统一的编号系统进行索引从而进行主题事项分配。
B. 所有出版物应使用标准编号系统进行索引和主题事项分配。
C. 所有发行物应使用标准的编号索引系统来完成主题事项分配。
A. This system does not exceed the normal channels of communication for items not included in the CAP.
B. This system does not supersede the normal channels of communication for items not covered by the CAP.
C. For items not mentioned in the CAP, this system does not occupy the normal channels of communication.
A. Do not use compressed air to clean the holes behind the display unit, because it can blow contaminants into display unit which may be damaged.
B. Do not use compressed air to clean the holes on the rear of the display unit, Compressed air will push contamination into the display unit, this can cause damage to the equipment.
C. Because pressurized air can blow contamination away from the display unit, you should not use it to clean the holes behind the display unit in order to avoid damaging the equipment.
A. Aircraft alternation defines as the modification of structure or components of the aircraft.
B. Aircraft hangar maintenance contributes to the aircraft alternation.
C. Aircraft alternation includes major or minor alternation, which is the modification of an aircraft’s structure or component without changing to the flight characteristics.
A. To include a relocated chapter table of contents is not required if the total chapter has been relocated, while the subsystem relocations should then be identified in the table of contents at the front of the book.
B. On conditional that the total chapter has been relocated, to include a relocated chapter table of contents is not important, then the subsystem relocations should then be identified in the table of contents at the front of the book.
C. If the total chapter has been relocated, it is not forced to contain a relocated chapter table of contents, and the subsystem relocations should then be identified in the table of contents at the front of the book.
A. Do not let the flame become solid.
B. Never let the foam become liquid.
C. Do not let the foam become solid.
A. 量规的精度必须符合适用的质量标准。
B. 选择量规必须参照已有的质量标准。
C. 采购护目镜必须满足相应的质量标准。
A. 人工超控起动顺序。
B. 按手册重写起动顺序。
C. 手动覆盖起动序列。
