词义猜测:

  (1)____ I'm dying for a piano.

  (2)____ Finally,the sound died away.

  (3)____Dinosaurs(恐龙)died out from the earth.

  (4)____The flames finally died down.

  (5)____The animals here died off because of theair pollution.

  (6)____The old woman died of grief (悲伤) soon after her husband's death.

  (7)____He died from a traffic accident.

简述人事行政的特点。