The ship emergency plan item should not include () Ⅰ.ifesaving,fire fighting, leakage blocking, abandon ship Ⅱ.irst aid Ⅲ.ntegration emergency
A.Ⅱ B.Ⅲ C.Ⅰ+Ⅲ D.Ⅰ
A.two knock B.three knocks C.four knocks D.five knocks
A.fire fighting B.leakage blocking C.abandon ship D.integration