（）, 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。

以下哪些情况会造成提示“Incorrect number or IP address”？（）

文明礼仪是展示什么的重要途径？

北京奥组委按照既定日程，从2003年开始了奥林匹克文化节；。组织了奥林匹克知识论坛，开展了（）知识竞赛活动，通过北京市主要报纸刊登竞赛试题，吸引了百万市民的直接参与。

电子工程学院举办的法律知识竞赛内容是什么？（列举五个）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。