电离电荷在下述什么物质中易被收集起来

A．骨骼
B．气体
C．肌肉
D．肠管
E．体液

Administrative closure should not be delayed until project completion because （）.

A．useful information may be lost

B．the project manager may be reassigned

C．project team members may be reassigned by that time

D．sellers are anxious for payments