（）, 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。

作为一名师范生或在职教师除了应具备各种教学技能外，还应具备较高的对（）、（），只有这样才具备了进一步提高教学技能和研究教学艺术的条件。

教学过程实质上是教师引导学生学习的教与学相统一活动的时间流程。

与知识点之间相互关联的教学信息组织结构相对应的软件导航是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

为实现教育教学目的，在教学过程中介于教师的教与学生的学之间，携带并传递着教学信息，影响师生信息相互交流与传递的工具被称为（）