问题：
[单选题] A schedule is commonly used in project planning and project portfolio management.（ ） on a schedule m
A、EssencesB、ElementsC、PurposesD、Issues问题：
[单选题] A transaction is an action,or a series of actions,carried out by a single user or（ ）,that accesses o
A、completedB、incompleteC、abortedD、committed问题：
[单选题] About electronic wallet，the correct description is______.
A、electronic wallets require consumers to enter their information at every site with which they want to do businessB、a client-side electronic wallet s...问题：
[单选题] Accelerated analysis approaches emphasize the construction of（请作答此空）to more rapidly identify busines
A、object modelsB、prototypesC、use casesD、components问题：
[单选题] Accelerated analysis approaches emphasize the construction of（ ）to more rapidly identify business an
A、requirement discoveryB、business process redesignC、cause-and-effect analysisD、total quality management问题：
[单选题] Accelerated analysis approaches emphasize the construction of（ ）to more rapidly identify business an
A、existing database and application programB、application program and user interfaceC、existing database and user interfaceD、existing database，applicati...问题：
[单选题] Access类型的端口在发送报文时，会（ ）。
A、发送带tag的报文B、剥离报文的VLAN信息，然后再发送出去C、添加报文的VLAN信息，然后再发送出去D、打上本端口的PVID信息，然后再发送出去问题：
[单选题] ADSL采用（上题）技术把PSTN线路划分为话音，上行下行三个独立的信道，同时提供电话和上网服务。采用ADSL联网，计算机需要通过（本题）和分离器链接到电话入户接线盒。
A、ADSL交换机B、Cable ModemC、ADSL Modem D、无线路由器问题：
[单选题] Alice 发给 Bob 一个经 Alice 签名的文件，Bob 可以通过（16）验证该文件来源的合法性。
A、Alice 的公钥B、Alice 的私钥C、Bob的公钥 D、Bob的私钥问题：
[单选题] all the following tools and techniques are helpful to accurately confirming customers needs,except （
A、questionnairesB、prototyping approachesC、fishbone diagramsD、interviews问题：
