（）, 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 （）.

“用之则行，舍之则藏。”出自哪里？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

“民以君为心，君以民为本”出自哪里？（）

玉的“五德说”出自哪里？（）

“悲彼《东山》诗，悠悠使我哀。”出自曹操的《苦寒行》。请问诗中提到的《东山》诗出自哪里？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。