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 （）.

以下哪一个国家的权利距离较大（）。

政治权利包括以下哪一个

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

以下哪些情况会造成提示“Incorrect number or IP address”？（）

大学“基础”课与中学品德课的区别不包括以下哪方面：( )

中国著名大学科技大学位于哪一个城市？（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。