The lifebuoy intended to operate the quick release arrangement provided for the self- activated smoke signals and self- igniting lights, have a mass of not less than ______kg.(1.0)
A.2.5 B.3 C.3.5 D.4正确答案D
The lifebuoy intended to operate the quick release arrangement provided for the self- activated smoke signals and self- igniting lights, have a mass of not less than ______kg.(1.0)
A.2.5 B.3 C.3.5 D.4正确答案D
