找考题网-背景图
单项选择题

If your bridge-to-bridge radiotelephone ceases to operate,you must().

A.immediately anchor your vessel and arrange for repairs to the system
B.moor your vessel at the nearest dock available and arrange for repairs to the system
C.arrange for the repair of the system to be completed within 48 hours
D.exercise due diligence to restore the system at the earliest practicable time