由下 * * 条线段,不能组成三角形的一组是( )
A.3cm、4cm、5cm
B.6cm、8cm、9cm
C.4cm、4cm、9cm
D.5cm、7cm、7cm
答案:C
Project team members are drawn from all available sources, both internal and external. When the project management team is able to influence or direct staff assignments, characteristics to consider include all of the following EXCEPT ______ .
A.availability
B.political philosophy
C.ability
D.experience
秸秆还田时为什么要配施速效氮肥?