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【单选题】
109 The 'rolling wave' or 'moving window' concept is used most frequently on projects where:A.
The baseline is frozen for the duration of the project and no scope changes are permitted
B.
Marketing is unsure of what the customer actually wants and reserves the right to make major scope changes
C.
The low levels of the work breakdown structure are known with certainty for the next three to six months, but the remaining tasks are based upon the results of the first three to six months of work
D.
Networking techniques are not appropriate
E.
All of the above
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【简答题】将以下各数据修约为三位有效数字 4.385( ) 0.6355( ) 2.3746( ) 0.7437( ) 0.24655( )
【判断题】劳动与 社会保障 的保险,即社会保险(简称社保),包含:基本养老保险、基本医疗{或大病}保险、工伤保险、失业保险、生育保险等5项 ,它属于商业保险的一种。
A.
正确
B.
错误