A、 The first step in listing possible causes of each trouble is to show what sections of the system may be at fault.
B、 Listing possible causes of each trouble is the first step to show what sections of the system may be failure.
C、 The first step in listing which parts of the system are likely to fail is to show the possible causes of each failure
答案：A
A、 The first step in listing possible causes of each trouble is to show what sections of the system may be at fault.
B、 Listing possible causes of each trouble is the first step to show what sections of the system may be failure.
C、 The first step in listing which parts of the system are likely to fail is to show the possible causes of each failure
答案：A
A. Clear the pipes in order to remove corrosion.
B. Wash the pipes so as to remove dust.
C. Flush the pipes to remove contamination.
A. Before drilling the hole, make sure that the point of the drill head is sharp.
B. Prior to drilling the hole, make sure that the point of the drill bit is sharp.
C. Before you make the hole, make sure that the point of the drill bit is sharp.
A. Disconnect all testing systems as necessary were.
B. Disconnect all the systems which are not necessary for the test.
C. Turn off all the unnecessary systems.
A. lf the indication is not correct, do the test again.
B. If the indication is not incorrect, you should do the next test.
C. Do the test a second time if the indication is correct.
A. 燃油温度传感器的电阻随燃油温度的变化而变化。
B. 燃油测温包的阻抗改变燃油的温度。
C. 电感改变燃油测温灯泡的燃油温度。
A. Clean the surface with a soap and clean a water solution.
B. Use a soap-and-water solution to clean the surface.
C. Use a soap to clean the surface and a water solution.
A. Rigging: the adjustment of control and travel of movable flight controls , involves setting cable tension, adjusting travel limits of flight controls, and setting stops
B. Rigging: the adjustment of setting cable tension, adjusting travel of flight controls, and setting travel stops that involved the control and travel of movable flight controls
C. Rigging: the adjustment of control and travel of movable flight controls , involves setting cable tension, adjusting travel limits of flight controls, and setting travel stops
A. Provide the pneumatic power for the system.
B. Supply the electrical power for the system.
C. Remove the electrical power for the system.
A. 当你顶升或者放下飞机时,必须保持水平姿态。
B. 当你顶升或者放下飞机时,必须保持水平高度。
C. 当你顶升飞机时,必须保持水平高度。
A. 调整加速度计的精度。
B. 准确调整陀螺仪。
C. 调整罗盘的精度。
