A continuous sounding of a fog-signal apparatus indicates .(1.0)
A.the vessel is in distress B.the vessel has completed loading dangerous cargo C.it is safe to pass D.the vessel is anchored正确答案A
A continuous sounding of a fog-signal apparatus indicates .(1.0)
A.the vessel is in distress B.the vessel has completed loading dangerous cargo C.it is safe to pass D.the vessel is anchored正确答案A
