由内港媒体专家深入解析外宣及危机公关的传播要点和应对技巧，并通过模拟场景演练，提升企业媒体管理能力。 being Not thoroughly grammatical, however the instance is all right with "These" rather than "the ones/chairs". (Perhaps we should always distinguish amongst "types" to be a plural indefinite noun in "those" and to be a pronoun (so referred to as) which stands for a whole indefinite NP... https://vodemcasa.com/one-tv-p2p-paga-melhor