面点到（）的铅垂距离称为绝对高程。

地面上AB两点间绝对高程之差与相对高程之差是相同的。 (  )

两点绝对高程之差与该两点相对高程之差应为（）。

两点之间的绝对高程之差与相对高程之差（）。

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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

华北水利水电大学（花园校区）位于（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。