试题内容

During planning you sit down and estimate the time needed for each task and total them to come up with the project estimate. This duration is what you commit to complete the project. What is wrong with the scenario? （ ） .
A．The team did not create the estimate and estimating tales too long using that method
B．The team did not create the estimate and a network diagram was not used
C．The estimate is too long and should be created by management
D．The project estimate;should be the same as the customer's reqhired completion date
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