A.適應(yīng)時(shí)代背景B.適應(yīng)時(shí)空環(huán)境C.適應(yīng)文化背景D.適應(yīng)公關(guān)對(duì)象
A.音調(diào)B.音量C.音高D.音質(zhì)
A.語言的發(fā)展B.文化的發(fā)展C.交流的發(fā)展D.經(jīng)濟(jì)的發(fā)展