在Kerberos认证中，把对Client向本Kerberos的认证域以外的Server申请服务称为（）

MAC子头中L域最大长度为（）

在无线帧头中存在多少个MAC地址?

DCS工程域号是从（）开始，最大到（）。

TD-LTE中，常规CP的时间长度为（）。

总线型局域网中封装在MAC帧中的LLC帧，最大长度为（）字节。

关于消息认证（如MAC等），下列说法中错误的是（）。

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.

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。