大数据安全与隐私保护关键技术有（）。

大数据时代，个人隐私受到了前所未有的威胁。

改革开放使社会主义焕发出前所未有的强大生命力，使马克思主义焕发出前所未有的强大（）。

采用新技术、新材料等制成的前所未有的产品，称为（）

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。

在大数据涉及的关键技术中，个人隐私和数据安全是很容易得到保证的。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。