（）, 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 （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

我国第一部编年体历史著作是（　）

我国历史上第一部编年通史著作是（）

我国第一部编年体历史著作是（ ）。

（）是全世界最早的历史文献学家，他编写了中国第一部编年史学著作——《春秋》。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。