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【单选题】
Documented work authorization provide:A.
a means of effective internal coordination of the project's activities.
B.
an audit trail of all work authorized from project initiation to completion.
C.
a means for communication of work activity between the project manager and the performing activities.
D.
All of the above
E.
A and B only.
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【单选题】What kind of data illustrates the degree to which visitor dollars move among tourism industry businesses until they “leak” out of the economy?
A.
direct data
B.
primary data
C.
secondary data
D.
performance data
【简答题】what's kind of the structure of economic data?
【单选题】What kind of data can be packed into a texture
A.
Color image
B.
Grayscale image
C.
3D vectors
D.
All above
【单选题】What kind of OLAP technology aims at supporting individual departments or business functions and stores only summarized historical data?
A.
Databases
B.
Datamarts
C.
Data warehouses
D.
Data webhouses
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