The parking brake is set by depressing the____ (刹车脚蹬) fully, pulling the_______(刹车手柄) on the _____(操纵台), then releasing the brake pedals.
A.brake linkage, parking valve,control stand
B.parking pedal, brake line,control stand
C.parking pedal,brake valve, stand
D.brake pedal，brake lever，control stand
正确答案是D