Disconnect the tow bar from the vehicle.

A. 调整倾斜仪，直到气泡位于中心。

B. 在倾斜仪上的气泡位于中心后进行调整。

C. 将倾斜仪调整到气泡的中心位置。

A. Different meanings occur when words are combined in different ways.

B. When words can link up in different ways, ambiguity occurs.

C. Misunderstanding happens when words are contained in different modes.

A. If you bend this part too far, it will break.

B. The part will bend if you break it too much.

C. If you bend the part too much, it will separate.

A. 如果油箱中不是所需的油液，可能会使泵损坏。

B. 如果油箱中的油量过多，可能会使泵损坏。

C. 如果油箱中的油量不足，可能会使泵损坏。

A. That portion of the system is used to perform the cranking portion of the starting operation.

B. That portion of the system is used to perform the igniting portion of the starting operation.

C. That portion of the system is used to perform the cranking portion of the igniting operation.

A. 这些密封剂的特性可预防腐蚀。

B. 这些封严块的性能可阻止碰撞。

C. 这些溶液的性质可防锈。

A. The portion of the system is used to eliminate or prevent the formation of ice on all airfoil surfaces, including wings and airfoil sections of the empennage.

B. The portion of the system is used to dispel or get rid of ice gathering on some aircraft surfaces, including wings and empennage surfaces.

C. The portion of the system is used to eliminate or forbid ice forming on outside parts of all airfoils, including the airfoils of wings and empennage.

A. The cover title shall be "Pilot＇s Operating Handbook" or "Polit＇s Operating Handbook and FAA Approved Airplane Flight Manual."

B. The name of the book might be "Pilot＇s Operating Handbook" or "FAA Approved Airplane Flight Manual."

C. The cover could be named as "Pilot＇s Operation Instruction" or "Pilot＇s Operation Instruction and FAA Approved Airplane Flight Instruction."

A. 电子舱有隔热毯、消音层、维修灯、冷却电气电子设备和相关组件的设备架。

B. 电子舱有隔热毯、消音层、维修灯、由空气冷却的电气电子设备和相关组件的设备架。

C. 电子舱有绝缘层、维修灯、由空气冷却的电气电子设备和相关组件的设备架。

A. 松散接头会造成损伤。

B. 错误连接会造成损伤。

C. 损伤的原因是松散连接。