单项选择题
A.Brass
B.Copper
C.Lead
D.Zinc
单项选择题 The major components which determine the length of catenary in a deployed anchor cable are water depth,cable tension,and().
单项选择题 The capacity of any liferaft on board a vessel can be determined by().
单项选择题 That the()showed that the ship complied with the requirements of the said Convention.