Examine the blade for cracks.

A. 与联络人有适用性方面的问题，可以联系工程部解决。

B. 如对本要求的适用性有疑问，请联系工程部联络人。

C. 如果适用性有问题，请联系工程部联络人。

A. 数据应以标准日（ISA）的时间、燃料和从海平面爬升的距离与海拔高度的关系来表示。

B. 数据应能够呈现标准日（ISA）的时间、燃料和从海平面爬升的距离与海拔高度的关系。

C. 数据应显示国际标准大气(ISA)条件下飞机从海平面爬升到某高度所需的时间、燃油消耗量和水平距离。

A. The ailerons are located to the outside rare edge of each wing.

B. The spoilers are located on the outside rare edge of each wing.

C. The ailerons are located on the outboard trailing edge of each wing.

A. 在工作区入口处设置安全屏障。

B. 在工作区域放置安全电源。

C. 放置安全屏障在入口通道的位置。

A. Do not exceed this dimension or Mach in any operation.

B. Do not exceed the regulated flight speed or Mach Number in any operation.

C. Do not exceed this speed or Mach Number in any operation.

A. Record the results if the frequency changes.

B. Alter the phase and record the results.

C. Change the frequency and record the results.

A. Operation time should be recorded if the pump is in emergency .

B. When you use the emergency pump, record the time of operation.

C. When the pump is for emergency use, record the time of usage.

A. Do a tire pressure check, and if necessary inflate the tires.

B. Check the pressure of a wheel and charge it if necessary.

C. Inspect the tire pressure and it＇s required to refuel.

A. If the hydraulic pump turns to generate pressure of 3000 psi, use the electric pump.

B. If the hydraulic pump fails to generate pressure of 3000 psi, use the electric pump.

C. If the hydraulic pump turns to supply pressure of 3000 psi, use the electric pump.

A. When there are too many positive or subtractive pressure in the fuel tanks,the pressure relief valve eliminates damage to the wing structure.

B. When there is too much plus or minus pressure in the fuel tanks,the pressure relief valve previews damage to the wing structure.

C. The pressure relief valve prevents damage to the wing structure when there is too much positive or negative pressure in the fuel tanks.