（）, 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 （）.

教师应具备的教育专业知识具体包括一般教育学知识和学科教育学知识。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

（）大学教育学院高级讲师大卫.特里普（DaridTripp）强调，要善于发现并解释教学中的关键事件，并运用其来提升教师的专业素养，改进教育教学效果，关键在于发展教师的专业判断力.

（）大学教育学院高级讲师大卫•特里普强调，要善于发现并解释教学中的关键事件，并运用其来提升教师的专业素养，改进教育教学效果，关键在于发展教师的专业判断力。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

布尔逻辑具体检索时，是通过三个布尔运算符来实现其功能的：AND、OR、（）。