Language contains two subsystems: sounds and meanings.（)

The connection between sound and meaning is conventional and arbitrary.（)

What is the duality of the language？A．Letters and sounds.B．Sounds and symbols.C．Symbols an

A morpheme is a two-facet language unit, which possesses bothA．function and meaning.B．lett

______ studies the sound system of language and the functioning of the speech sounds.A．Pho

A（n)______ is the smallest unit of sound in a language, which can distinguish two words.A．

If two sounds in a language make a contrast between two different words, such as[t]in tie