唐代的乐舞机构有（）、（）、（），集中和培养了大批乐舞艺人。

原始乐舞的内容有哪些？

中国共产党在历史上形成的优良作风有哪些？

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。

以下哪些情况会造成提示“Incorrect number or IP address”？（）

中国音乐的历史分期是依据政体以及朝代的变更进行的。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。