(2.5 分)
The emergency kit is prepared for use in all the following events except_________.
A.failure of regular navigation systems B.destruction of regular navigation systems C.the abandoning ship D.maintaining regular navigation正确答案D
(2.5 分)
The emergency kit is prepared for use in all the following events except_________.
A.failure of regular navigation systems B.destruction of regular navigation systems C.the abandoning ship D.maintaining regular navigation正确答案D
