问题
单项选择题
All self-propelled vessels on an international voyage must be equipped with how many Emergency Position Indicating Radio beacons (EPIRB)? （）
A.One approved Category 1 EPIRB
B.Three approved Category 1 EPIRBs
C.One approved Class B EPIRB
D.Two approved Class B EPIRBs
答案
参考答案：A