（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

当代大学生的历史使命是什么？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

清朝入关是什么（）

清朝是中国历史上最后一个封建王朝，包括入关前定额两位皇帝在内的12位皇帝。追封的始祖和这12位皇帝及他们的后妃除一位皇帝外都建造了陵寝，请问哪位皇帝没有建陵？他死后安葬在哪里？

当代大学生的历史使命和成才目标是什么？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。