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history of public relations
释义
history of public relations
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history of public relations
公共关系史
广义的公共关系史指人类公共关系思想、活动和现象的发展变迁史。狭义的公共关系史指现代公共关系事业诞生以来,人类公共关系思想史、实践发展史的形成与变迁。
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protonation constant
proton balance
proton beam
proton beam writing
proton binding energy
proton bridged ion
proton-bridged ion
proton capture
proton charge radius
proton collider
proton condition
proton condition; proton balance
proton conduction mechanism
proton conductor
proton decay
proton-deficient isotope
proton-deficient nuclide
Proton D family upper stage
proton distribution
proton donor
proton drip line
proton drip-line
proto-nebula
proton-electron-proton reaction
protonema
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