单项选择题X 纠错
A.in linguistic evolution, speech is prior to writing
B.speech plays a greater role than writing in terms of the amount of information conveyed
C.speech is always the way in which every native speaker acquires his mother tongue
D.All of the above
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A.Arbitrariness
B.Displacement
C.Duality
D.Meaningfulness
单项选择题
A.prescriptive
B.analytic
C.descriptive
D.linguistic