单选题Your vessel is approaching a bend. You hear a prolonged blast from around the bend. You should （）.Aback your enginesBstop your engines and driftCanswer with one prolonged blastDsound the danger signal
单选题
Your vessel is approaching a bend. You hear a prolonged blast from around the bend. You should （）.
A
back your engines
B
stop your engines and drift
C
answer with one prolonged blast
D
sound the danger signal
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