A、 It includes items such as audio selector control panel, microphones, head phones, cockpit loud speakers, etc.
B、 It includes items such as automatic selector control panel, interphones, head phones, cockpit loud speakers, etc.
C、 It includes items such as audio selector control panel, microphones, head phones, cockpit speakers, etc.
答案：C
A、 It includes items such as audio selector control panel, microphones, head phones, cockpit loud speakers, etc.
B、 It includes items such as automatic selector control panel, interphones, head phones, cockpit loud speakers, etc.
C、 It includes items such as audio selector control panel, microphones, head phones, cockpit speakers, etc.
答案：C
A. In some cases, for complex aircraft, special training should be conducted so that the aircraft and its systems can be maintained properly.
B. Sometimes, especially for complex airplanes, it may be necessary to provide specific training in the proper maintenance of the airplane and its systems.
C. Sometimes, for particularly complex airplanes, it is required to provide special training so as to perform proper maintenance of the aircraft and its systems.
A. Detach the sensor to establish a physical connection with the adjoining structure.
B. Install the sensor to block access to the adjacent structure.
C. Take out the sensor to reach to the neighboring structure.
A. This procedure does not include the removal of the cylinder.
B. This procedure does not exclude the removal of the piston.
C. This procedure does not include the removal of the piston.
A. Airspeeds used in this Section shall be specified in Indicated Airspeed, assuming zero instrument error, in order to make the information as directly usable as possible.
B. This Section shall use Indicated Airspeed as Airspeed, i.e. the instrument is mostly accurate, so the information can be used directly.
C. Airspeed used in this Section shall be defined as Indicated Airspeed, that is, the instrument is almost right, so as to make the information possibly be used directly.
A. 如果有损伤报告，要进行检查。
B. 检查后发现有损伤。
C. 如有损伤迹象，进行检查。
A. Use special crank to rotate shaft of reel assembly clockwise to unwind the harness assembly from the spool.
B. Use special handle to turn the roller of spool assembly clockwise to wind the harness assembly from the reel.
C. Use special crank to rotate the spool of reel assembly clockwise to unfold the harness assembly from the shaft.
A. Separate the first part of the sentence as the subsequent items in the lateral list.
B. Apart the first part of the sentence from the subsequent items in the horizontal list.
C. Divide the first part of the sentence from the subsequent items in the vertical list.
A. The center of gravity moves along with the weight of the wings.
B. The center of gravity moves in relation to forces applied on the wings.
C. The center of gravity moves evenly to the loads of the wings.
A. However, manufacturers are following the same fundamental systems and sequence of subject arrangements even if some systems, which are not available, may be bypassed.
B. Nevertheless, each manufacturer is expected to follow the same sequence of basic system and subject arrangements even though some systems may be omitted when not applicable.
C. Even so, all manufacturers are expected to submit to the same arrangements of main systems and subject sequences even though certain systems would be ignored when not applicable.
A. 在表面放置一块透明塑料片。
B. 在外面放置一块复合材料薄片。
C. 将一块强化塑料置于部件表面。
