（）, 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.

冷作变形使碳素结构钢的性能发生哪些变化：（）

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”？（）

关于硅酮结构密封胶剥离试验的说法，不正确的是（）。

用正交表116(215)安排试验时，需要做（）个不同条件的试验。

用正交表L8(27)安排试验时需要做( )个不同条件的试验。

密封结构需要做哪些试验？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。