水平角的取值范围为0~360^o。 (  )

竖直度盘和指标是测量竖直角的主要装置。

()测量的主要内容包括水平角和竖直角的测量。

竖直角的角值范围是（）。

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。

（）是在同一竖直平面内，倾斜视线与水平线之间的夹角，其角度取值范围为0°～90°。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。