在信息系统工程项目实施过程中，因承建单位原因造成实际进度拖后，监理工程师确认承建单位修改后的实施进度计划，表示（） 。
A. 排除承建单位应负的责任
B. 批准合同工期延长
C. 实施进度计划满足合同工期要求
D. 同意承建单位在合理状态下实施
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What does a CPI of 80% mean？ () .
As of now we expect the total pr gject cost of 80% more than planned
B. When the project is completed, we will have spent 80% more
C. Your project is only progressing at 80% of that planned
D. Your project is only getting 80 cents out of every RMB invested
is the budgeted amount for the work actually completed on the schedule acticity or WBS comonent during a given period。
A. Planned value
B. Actual cost
C. Earned value
D. Cost variance
建设项目后评价是工程建设程序中的最后一个阶段。()
Both TCP and UDP belong to () layer of the OSI mode。
A. session
B. transport
C. network
D. data link
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