You have to finish a project with in 2 weeks and your lead developer had to take 1 week leave due to personal emergency．Another project manager has agreed to loan the service of his lead developer for 1 week．You are taking his help and completing the project．This case is an example of （） (Choose the best answer)．

A．fast tracking

B．crashing

C．risk management

D．resource leveling

女性，43岁，因月经时间长就诊。超声检查如图，最可能的诊断为（）

A.节育环下移

B.子宫内膜癌

C.子宫肌瘤

D.宫腔残留

E.子宫内膜钙化