（）, 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。

个人独资企业由投资人自行管理企业事务。（）

个人独资企业投资人只能自行管理企业事务。（ ）

个人独资企业投资人只能自行管理企业事务。( )

投资人委托或聘用的管理个人独资企业事务的人员不得有下列行为（ ）。

个人独资企业由投资人自行管理企业事务。()

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。