34.__________ is the reduced speed of a vessel in circumstances where it may be required to use
the engines at short notice.
(A)Fairway speed
(B)Engine full speed
(C)Manoeuvring speed
(D)Mandatory speed
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統計: A(6), B(4), C(9), D(4), E(0) #2401820
統計: A(6), B(4), C(9), D(4), E(0) #2401820