[7-57]___is not the information necessary for the master to obtain guidance as to the stability of the ship. 下列哪一项不是船长在获取有关船舶稳性的指南时必须的资料()
A.
a curve of minimum operational metacentric height(GM)versus draught 一条船舶可用稳性高度与吃水之间对应关系的曲线
B.
instructions concerning the operation of cross-flooding arrangements 有关交叉浸水分布操作的指导
C.
the signals or lights being exhibited or sounded 显示或鸣放的信号或灯光
D.
all other data and aids which might be necessary to maintain stability after damage 船舶受损后所有对保持船舶稳性必要的资料和帮助