19. To decrease the distance to the vessel ahead by increasing one’s own speed, it is:
(A) Crash-stop
(B) Slow down
(C) Close up
(D) Turn over
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統計: A(30), B(24), C(149), D(19), E(0) #3009040
統計: A(30), B(24), C(149), D(19), E(0) #3009040