在项目总控的系统过程中，信息流包括四个平面，即目标平面.信息平面.报告平面.用户平面。用户平面的用户是（）。
A. 施工单位决策者
B. 业主方决策者
C. 项目总控（PMO）
D. 业主方现场执行层
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电力电缆中，保护层保护电缆免受外界杂质和水分的侵入，以防止外力直接损坏电缆。第十章
A. 正确
B. 错误
What should be part of a comprehensive network security plan（）。
Allow users to develop their own approach to network security
B. Physically secure network equipment from potential access by unauthorized individuals
C. Encourage users to use personal information in their passwords to minimize the likelihood of passwords being forgotten
Delay deployment of software patches and updates until their effect on end-user equipment is well known and widely reported
E. Minimize network overhead by deactivating automatic antivirus client update
GPRS下行功率控制，当采用方式B（ModeB）时，对其他参数的要求（）
A. Fixed MAC Mode, GPRS_PC_MEAS_Chan=BCCH
B. Fixed MAC Mode, GPRS_PC_MEAS_Chan=PDCH
C. Dynamic MAC Mode, GPRS_PC_MEAS_Chan=BCCH
D. Extend Dynamic MAC Mode, GPRS_PC_MEAS_Chan=BCCH
创业的资源可以互相结合和转化，创业成功的关键在于对资源的掌控。
A. 正确
B. 错误
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