Every inflatable life raft shall be serviced at intervals not exceeding______ months, provided where in any case this is impracticable, the administration may extend this period to______ months.(1.0)
A.6, 10 B.6, 12 C.12, 17 D.12, 18正确答案C
Every inflatable life raft shall be serviced at intervals not exceeding______ months, provided where in any case this is impracticable, the administration may extend this period to______ months.(1.0)
A.6, 10 B.6, 12 C.12, 17 D.12, 18正确答案C
