主管生长发育是哪脏的功能
A．肝
B．心
C．脾
D．肺
E．肾
参考答案：E
In det rmining a safe speed of your ship,（）shall not be among those taken into account.（）
A.the state of visibility
B.the traffic density
C.the number of crew on board
D.the maneuverability of the vessel
直角扣件、旋转扣件的抗滑承载能力设计值为（）
A.6kN
B.8kN
C.7kN
D.8.5kN
