曹操设置的秘书令，秘书丞在中国秘书史上的意义。

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, 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（）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

（）是中央掌管教育事务的部门，负责国立学校的建立和管理，审批公立和私立大学的建设，审定教科书。

从宏观上看，秘书工作有两大范畴，即“参与政务”、“掌管事务”。

秘书部门横向结构反映的是秘书工作的（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。