结构化程序的三种基本逻辑结构为顺序，循环和( )。

结构化程序设计中的三种基本结构是顺序结构、分支结构和（）。

计算机程序的三种结构是顺序结构、（）、选择结构。

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.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

算法的三种基本控制结构是顺序结构、分支结构和（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。