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。

下列情况不能使用慰问信的是（）。

慰问信在使用中（）

慰问信中可使用（　　）。

慰问信中可使用（）。

在事业单位服务的“三支一扶”大学生服务满一年后，在现岗位空缺的情况下，经考核合格，可与所在单位签订不少于（）年的聘用合同。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。