Measure the bend radius of the hose from the point where the bend starts.

A. Supervise the display of audio altimeter.

B. Monitor the media altitude meter display.

C. Monitor the radio altimeter indicator.

A. 消耗燃油包括用于发动机启动、拖动、起飞、正常爬升、下降和45分钟备用的燃油。

B. 用于发动机启动、拖动、起飞、慢速爬升、下降和45分钟使用的燃油，即为消耗燃油。

C. 所需燃油包括用于发动机启动、滑行、起飞、正常爬升、下降和45分钟备用的燃油。

A. 在某些情况下，导线是以颜色编码的，这些情况应在接线图上标明。

B. 在某些情况下，导线的颜色是喷涂上去的，在线路图上标出了。

C. 在某些情况下，线路图上会标出以颜色区分的导线分布情况。

A. The Unusual Procedures Check List should be in concrete, abbreviated form.

B. The Emergency Procedures Check List should be in constant, abbreviated form.

C. The Abnormal Procedures Check List should be in concise, abbreviated form.

A. When describing the airplane＇s Engine, spark plug system shall be described.

B. When describing the airplane＇s Engine, starter system shall be described.

C. In the description of the airplane＇s Engine, ignition system shall be described.

A. Exhale into the oxygen mask.

B. Breathe into the oxygen mask.

C. Breathe into the gas mask.

A. Ensure that the porosity is less than the specified error.

B. Ensure that the depth of the hole conforms to the specified value.

C. Make sure that the diameter of the hole is less than the specified value.

A. Before you use dangerous materials, obey these precautions:

B. Before you use dangerous materials, omit these precautions:

C. Before you use dangerous materials, disobey these precautions:

A. 在紧急情况下要无条件的服从乘务人员。

B. 在紧急情况下可以向乘务人员提出问题。

C. 在紧急情况不要向乘务人员提出问题。

A. Grind the surface with a soft cloth after it becomes light.

B. Rub the surface with a soft cloth when it becomes brightness.

C. Polish the surface with a soft cloth until it becomes shiny.