下列哪项不是形成DVT的原因()
A.静脉壁损伤
B.动脉粥样硬化
C.长期卧床
D.血液粘度增高
E.血液凝固性增高
参考答案:B
企业仓储管理的主要任务有()
A.合理规划和有效利用仓储设施
B.保证及时准确的物资供应
C.合理储备材料
D.提高库存量
E.确保仓储物资的安全
●Precedence Diagrammin gMethod(PDM) is a method used in activity sequencing.There are four types of dependencies or precedence relationships in PDM. The initiation of the successor activity depends upon the completion of the predecessor activity is called__(75)__.
A.Finish-to-Start
B.Finish-to-Finish
C.Start-to-Start
D.Start-to-Finish