单项选择题
A cargo hose is marked with the（）.
A.maximum working pressure B.bursting pressure C.safety relief valve setting D.maximum temperature
单项选择题 A cargo that has a stowage factor over 40 is known as a（）.
单项选择题 A carling is used aboard ship（）.
单项选择题 A change of trim may be simply defined as（）.
