（）, 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。

“实践与综合应用”在第一学段以（）为主题，在第二学段以（）为主题。

简述新课程标准对小学数学课程内容呈现的基本要求。

在各学段中，数学课程安排了四个部分的课程内容：“数与代数”“图形与几何”“统计与概率”和（）。

在各学段中，数学课程安排了四个部分的课程内容：“数与代数”“图形与几何”“统计与概率”和()。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。