（）, 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 （）.

幼儿园常见的主题类型有：围绕（）开展的主题；围绕自然环境开展的主题；围绕社会环境与生活开展的主题；围绕人类与科学技术开展主题；围绕重大事件开展主题。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

在PowerPoint中，可通过为幻灯片添加主题来美化幻灯片，但主题资源只能来自PowerPoint内部自带的主题包。

在写作中，对主题的要求要好好把握，下列 不属于主题的要求的一项是（ ）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

按季节和节日两条线索选择主题是单元主题活动设计经常采用的方法。