从技术角度看，电子认证是以电子认证证书为核心的加密技术。

LTE中CP的长度可能为（）。

LTE中CP的长度可能为（）

TD-LTE中，常规CP的时间长度为（）。

LTE系统中，对normal子帧，有几种CP长度（）

专业技术资格考试是指各省统一组织、统一大纲、统一试题、统一考试时间和统一评分标准的考试。

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.

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。