用电信息采集系统容量与()有关。
A.数据传输速度
B.数据信息量
C.地址码长度
D.信道数
参考答案:C
肾小管分泌H+增多时可减少
A.尿素的排泄B.K+的分泌C.NH3的分泌D.C1-的排泄
The most crucial time for project risk assessment is()
A.when aproblem surfaces
B.during the planning phase
C.during the close-out phase
D.after the project schedule has been published