城镇职工按规定第二次购买公有住房的，免征契税。

城镇职工，按规定第一次购买公有住房的，免征一半契税。（）

减征、免征契税政策中，城镇职工，按规定第一次购买（）的，免征契税。

减征、免征契税政策中，城镇职工，按规定第一次购买（ ）的，免征契税。

已购公房指城镇职工根据国家和县级以上地方人民政府有关城镇住房制度改革政策规定，按照（）购买的公有住房。

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。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。