On the basis of study on lots of things, this thesis concludes that things of the objective problem domain have four states in their evolution which are birth, activity, sleep and death.

　
英 美
  • 通過(guò)對客觀(guān)問(wèn)題域中大量事物的研究，總結出客觀(guān)問(wèn)題域中的事物在發(fā)展過(guò)程中存在四種狀態(tài)，即產(chǎn)生、活動(dòng)、睡眠、消亡。
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