126.Make sure that you remove all tools and equipment.

A. Solenoid switches shall indicate whether the valve is solenoid-loaded to the open or closed positon.

B. Electromagnetic valves shall include a marking indicating whether the valve is coil-loaded to the open or closed positon.

C. Solenoid valves shall include a notation indicating whether the valve is spring-loaded to the open or closed positon.

A. A mixture of fuel and oxygen can cause an explosion.

B. Fuel and oxygen react with each other to cause explosion.

C. A mixture of fluid and oxygen can be set on fire.

A. 工作准备总是第一个步骤,收尾或收工是最后一个步骤是

B. 工作准备总是第一个步骤,收尾或收工是接下来的步骤

C. 第一个步骤有时是工作准备,收尾或收工是接下来的步骤

A. Tire wear increases with high speed.

B. The higher the speed is,the more fragile the tire becomes.

C. The tire blows out as the speed increases.

A. Let the substance become hard.

B. Let the adhesive become hard.

C. Let the admixture become hard.

A. 检修时更换的螺母和垫圈不要丢弃,应该进行检查。

B. 如果在检查过程中拆卸了螺母和垫圈,则应更换。不要重复使用。

C. 对拆下的螺母和垫圈要进行检查,损坏的件不可以重复使用。

A. 应明确指出与其他系统的互连。

B. 应正确指出与其他系统的联系。

C. 应注明与其他系统的关系。

A. When describing the airplane's Landing Gear,how its indication system functions shall be explained.

B. When describing the airplane's Landing Gear,how its emergency response system functions shall be explained.

C. In the description of the airplane's Landing Gear,how its warning system functions shall be explained.

A. 警告:关闭舱口前,确保机组休息室中没有人员。舱口关闭时,舱室没有气流,存在中毒的风险。

B. 警告:关闭舱门前,确保机组休息室中没有人员。舱口关闭时,舱室没有气流,存在窒息的风险。

C. 警告:关闭门栓前,确保机组休息室中没有人员。舱口关闭时,舱室没有气流,存在缺氧的风险。

D. B.警告:关闭舱门前,确保机组休息室中没有人员。舱口关闭时,舱室没有气流,存在窒息的风险。

E. C.警告:关闭门栓前,确保机组休息室中没有人员。舱口关闭时,舱室没有气流,存在缺

F. C.警告:关闭门栓前,确保机组休息室中没有人员。舱口关闭时,舱室没有气流,存在缺氧的风险。

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。