问题
单项选择题
A Class S EPIRB is a().
A.submarine EPIRB
B.safety EPIRB
C.ship EPIRB
D.survival craft EPIRB
答案
参考答案:D
A Class S EPIRB is a().
A.submarine EPIRB
B.safety EPIRB
C.ship EPIRB
D.survival craft EPIRB
参考答案:D