505 When a motorcycle rider follows another vehicle in front of a level crossing,
(A)slow down and maintain a greater distance from the vehicle ahead
(B)maintain a regular speed
(C)speed up and pass from the side.
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統計: A(2), B(0), C(0), D(0), E(0) #2216142
統計: A(2), B(0), C(0), D(0), E(0) #2216142