Traditionally,the signal for fire aboard ship is().
A:more than 6 short blasts and 1 long blast on the whistle,and the same signal on the general alarm
B:continuous sounding of the ship's whistle and the general alarm for at least 10 seconds
C:1 short blast on the whistle
D:alternating short and long blasts on the ship's whistle
出自:海船船员证