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 （）.

患者近日尿量较多，并出现血压下降，伴有四肢发凉、脉细弱等表现，查血浆钠110mmol/L，尿钠3mmol/L，考虑为哪种水钠代谢失常（）

患者近期食欲差，并出现疲乏、无力，尿量尚正常，查血钠120mmol/L，尿钠16mmol/L。考虑为哪种水钠代谢失常（）

患者近日尿量较多，并出现血压下降，伴有四肢发凉、脉细弱等表现，查血浆钠110mmol/L，尿钠3mmol/L，考虑为哪种水钠代谢失常

患者近期食欲差，并出现疲乏、无力，尿量尚正常，查血钠120mmol/L，尿钠16mmol/L。考虑为哪种水钠代谢失常

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

下列哪种水、钠代谢障碍易发生脑出血（　　）。