（）项目部技术能力、质量管理能力不足导致发生使用不合格的材料、不能正确采用合理工艺、工序衔接混乱等现象的发生使质量问题频发。
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知识化是当代科技革命、社会变革最重要的推动因素，也是新军事变革的本质和核心。
A. 正确
B. 错误
特殊时期专项评价是指各种重大保电活动、电网迎峰度夏、（）前对设备进行的评价。
Which two statements are true about the rendezvo us point (RP) in a multicast network?（）
A. The multicast sources must register with the RP to form the multicast distribution tree.
B. An RP is required only in networks running Protocol Independent Multicast dense mode (PIM DM).
C. The mu lticast receivers must register with the RP to form the multicast distribution tree.
D. An RP is required only in networks running Protocol Independent Multicast sparse mode (PIM SM).
E. An RP is required only in networks running Protocol Independent Mu lticast sparse - dense mode (PIM - SDM).
F. To form the multicast distribution tree, the multicast sources register with and the receivers join the R
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