19. When driving behind other vehicles and approaching a railroad crossing, I am required to:
(A) slow down and keep a greater distance between myself and the vehicle in front of me
(B) drive as usual
(C) speed up to pass the railroad crossing quickly.
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統計: A(4), B(1), C(0), D(0), E(0) #2214480
統計: A(4), B(1), C(0), D(0), E(0) #2214480