网络认证技术只是单向认证技术

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。

VPN,也就是虚拟专用网络，指的是在公用网络上建立专用网络的技术。

虚拟专用网络（VPN）指的是在（）上建立专用网络的技术。

人们常用“负载大小”来指负载电功率大小，在电压一定的情况下，负载大小是指负载电流的大小。（）

以电信机房和网络资源为依托，以高水平专业化技术支撑队伍为基础，为客户提供设备托管以及相关增值服务，并定期向客户收取下相应服务费用的业务是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。