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 （）.

坡屋顶的平瓦屋面的纵墙檐口根据造型要求可做成（）和（）两种。

烧结瓦、混凝土瓦屋面的瓦头挑出檐口的长度宜为（）mm。

砖或石质墙身，木楼板，瓦屋面的房屋是（　　）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

屋面防水层的收头处，檐口的形式由屋面的排水方式和建筑物的立面造型要求来确定。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

根据《房屋建筑与装饰工程计量规范》的规定，当单层建筑物檐口高度超过（）m时，可计算超高施工增加费。