The system of valves and cargo lines in the bottom piping network of a tanker that connects one section of cargo tanks to another section is called a（）.

The strictest load line regulations apply to（）.A.gas ca...

单项选择题The strictest load line regulations apply to（）.

The shearing stresses on a ship’s structure are usually...

单项选择题The shearing stresses on a ship’s structure are usually greatest at（）.

The safety stopper that prevents the anchor cable from ...

单项选择题The safety stopper that prevents the anchor cable from running free if the cable jumps the wildcat is the（）.