A、 Reinstall the supply ducts in the wing de-icing system.
B、 Install the telescopic ducts in the wing de-icing system.
C、 Install the elastic ducts in the wing anti-icing system.
答案：B
A、 Reinstall the supply ducts in the wing de-icing system.
B、 Install the telescopic ducts in the wing de-icing system.
C、 Install the elastic ducts in the wing anti-icing system.
答案：B
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. 所有发行物应使用统一的编号系统进行索引从而进行主题事项分配。
B. 所有出版物应使用标准编号系统进行索引和主题事项分配。
C. 所有发行物应使用标准的编号索引系统来完成主题事项分配。
A. Before you move the spoilers,tell all persons to get off the wings.
B. Before telling all persons to get off the wings,you move the ailerons.
C. Before you move the ailerons,tell all persons to get off the wings.
A. The red lights flash in half-second intervals.
B. The red lights twinkle in demi-second.
C. The red lights flag after each half a second.
A. A version means modifying the information in the existing manual.
B. A revise explains correcting information in an old manual.
C. A revision means a modification of information in an existing manual.
A. The engine power control system manages and controls the main fuel control or synchronizer,which is inclusive of controls to the propeller modulator on a turboprop engine.
B. The engine power control system furnishes a means of controlling the main fuel control or coordinator,which includes controls to the propeller regulator on turbo-prop engines.
C. The engine power control system regulates and controls the main oil,coordinator and propeller regulator of a turboprop engine.
A. Legal meaning whatsoever and implications couldn't be enclosedto the rules and terms in this document.
B. No legal significance or meanings should be fixed to the regulations and terms in this document.
C. The rules and terms in this document have no legal meaning or imply something.
A. Visual difference is acceptable between the previous surface and the new surface.
B. There should be no visual difference between the initial surface finish and the new surface finish.
C. It is forbidden to have acoustic difference between the former surface finish and the new surface finish.
A. 确保行李箱已空。
B. 确保厨房柜已空。
C. 确保卫生间已空。
A. 径向施加载荷。
B. 轴向施加载荷。
C. 周向释放载荷。
