可以在（）阶段采用Make-or-buy决策分析。

网络认证技术只是单向认证技术

认证技术一般可分为（）和（）两种技术。

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.

双向身份认证是指移动用户与移动通信网络之间相互认证身份。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

GPRS上网采用SIM认证方式，WLAN上网既可以采用SIM认证方式，也可以采用（）认证方式。

框架结构厂房的柱下基础一般采用的基础形式是（ ）。

（）是构成多种类型认证的基础。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。