1290.The information to be included on the cover will be left to the manufacturer's discretion.

A. Using a locally made tool to do the test is also accepted.

B. You can also make a local tool to do this test.

C. You can also make a tool to do this test locally.

A. The elevator is used for yaw control.

B. The rudder is used for yaw control.

C. The rudder is used for pitch control.

A. The applicant for an avoidance permit must show that the approval of the avoidance permit will not affect safety and must provide an explanation.The applicant shall take measures to ensure that the level of safety is equal to the level of safety provided

B. The petitioner for an exemption must include reasons why safety would not be adversely affected if the exemption is granted,or must explain the action to be taken by the petitioner to provide a level of safety equal to that provided by the rule from whic

C. The applicant for an exemption permit must state the reasons why safety will not be affected by the granted approval,or must take measures to ensure that the level of safety provided is consistent with the requirements of the regulations seeking exemption

A. 如果包含所有技术数据,则标题应为飞机维修手册。

B. 标题应为飞机维修手册,则所有数据包含在其中。

C. 飞机维修手册的标题应该包含所有技术数据。

A. 锁住保险丝时要小心,它会伤害你的眼睛。

B. 剪保险丝时要小心,它会伤害你的眼睛。

C. 锁住电线时要小心。它会对你的眼睛造成伤害。

A. 大多数主要结构件对于飞机的性能起重要作用。

B. 大多数次要结构对飞机的性能有重要影响。

C. 多数次要结构的重要性与飞机的性能有关。

A. Use a fan to suck the gases.

B. Use a turbine fan to remove the gases.

C. Use a fan to remove the gases.

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.

A. 为了简化表示和便于理解,应将复杂的系统分为系统功能,而非总体主原理图。

B. 为了充分展示和理解,应将复杂系统分解成子系统,而非总体主图表。

C. 为了演示方便和便于理解,复杂系统应简化为系统功能,而不是总体主图表。

A. 使用通用工具密封端口。

B. 使用指定的工具封严开口。

C. 端口可以使用特殊的工具封严。