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。

控制过蒙古高原大部分地区的少数民族有（）①匈奴②鲜卑③突厥④回纥

达斡尔族是个历史悠久的古老民族。在形成民族以前，春秋战国时期曾是东胡、鲜卑诸部落的一部分。形成民族后直到今天，基于用了个族称，即元代以前用“（）”，明代至今用了“达斡尔”。

中国历史上的茶马古道，推动民族之间交流交融，民族和谐相处的例子，说明了什么？（）

论述中国民族理论形成和发展的历史过程？

中国历史上鲜卑、金人、契丹、满族等都发源于（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。