57.飛機在鼻輪或尾輪可以轉動角度,以協助飛機之地面行進方向改變的是
(A)steeringsystem
(B)flightcontrolsystem
(C)enginecontrolsystem
(D)lubricationsystem
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統計: A(72), B(12), C(12), D(4), E(0) #283656
統計: A(72), B(12), C(12), D(4), E(0) #283656