（）, 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。

假如某因素与某病关系的病例对照研究结果的OR值为0.3（P＜0.01），最可能的解释是（）。

电信职业道德与职业责任和职业纪律都是制约人们行为的准则，并无明显的不同

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

（）的载体包括职业理想、职业态度、职业技能、职业纪律和职业作风。

职业道德的载体包括职业理想、职业态度、职业技能、职业纪律和职业作风。