The wing anti-ice system consists _____ air supply ducts, valves, ______, controls and indications.
A.of ,terminal switches B.up, blow-off door C.of, leading edge D.of, gasket正确答案A
The wing anti-ice system consists _____ air supply ducts, valves, ______, controls and indications.
A.of ,terminal switches B.up, blow-off door C.of, leading edge D.of, gasket正确答案A
