A seller has withdrawn from a project midway though execution and another seller is taking
A. Introduce team members .
B. Communicate the objectives of the project .
C. Assert authority .
D. Create a communications plan .
All of the following are tools for scope verification EXCEPT
A. Product reviews
B. Audits
C. Walk through
D. Sensitivity analysis
单纯风心病二尖瓣狭窄UCG表现错误的是
A. 左心房增大
B. 二尖瓣后叶"城垛样"改变
C. 前后叶舒张期同向运动
D. 二尖瓣钙化粘连
E. 左房内可有血栓
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