Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, 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.

中国哪个地方的城墙是最高的？（）

中国最早的城墙始于（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

教育学作为一门课程在大学里讲授，最早始于（　　）。

教育学作为一门课程在大学里讲授，最早始于（）

中国最早纸记档案始于什么时候？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。