A、概要设计 B、项目范围说明书 C、项目管理计划 D、需求规格说明书根据软件生命周期的V模型，系统测试主要针……

单项选择题The intention of the（）is to schedule, organize and control all activities to achieve the project goal eventually.no matter how difficult it is and what kind of risks are there.

A、project work breakdown
B、project security authentication
C、project management
D、project flowchart

单项选择题（）is a type of bar chart that illustrates a project schedule. It illustrates the start and finish dates of the terminal elements and summary elements of a project.

A、gantt chart
B、project histogram
C、milestone chart
D、project flowchart

单项选择题The uncertainty of an event is measured by its probability of occurrence and is inversely proportional to that. The more uncertain an event is. The more information is required to resolve uncertainty of that event. The amount of information is measured in （）

A、possibility
B、bits
C、bps
D、probability

单项选择题Information,in its most restricted technical sense,is a seque of symbols that can be interpreted as a message.ingormation can be recorded as signs,or transmitted as（）

A、symbols
B、message
C、signals
D、wave

单项选择题Each machine in the internet is assigned a unique network address,called（）,that is used to identify the machine for communication purposes

A、MAC address
B、IP address
C、host address
D、domain name address