单项选择题
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（）.
A.come-along B.crossover C.manifold D.runaround
单项选择题 The strictest load line regulations apply to（）.
单项选择题 The shearing stresses on a ship’s structure are usually greatest at（）.
单项选择题 The safety stopper that prevents the anchor cable from running free if the cable jumps the wildcat is the（）.
