工程建设的一般程序中,建设前期阶段不包括()环节。
A. 编制项目建议书
B. 可行性研究
C. 编制设计文件
D. 编制施工招标文件
通常将输入信噪比下降到某值时,若继续下降,则输出信噪比将急剧恶化的现象称之为()。
Which two statements are true about the command ip route 172.16.3.0 255.255.255.0 192.168.2.4 (Choose two.)()。
A. It establishes a static route to the 172.16.3.0 network
B. It establishes a static route to the 192.168.2.0 network
C. It configures the router to send any traffic for an unknown destination to the 172.16.3.0 network
D. It configures the router to send any traffic for an unknown destination out the interface with the address 192.168.2.4
E. It uses the default administrative distance
F. It is a route that would be used last if other routes to the same destination exist
由概念设计进入逻辑设计时,原来的()联系或()联系通常不需要被转换为对应的基本表。