2 依序排列前語言期(prelinguistic vocal stage)的語音發展順序:①反射性的發聲(reflexive vocalization)
②咕咕聲(cooing) ③牙牙學語(canonical babbling) ④發聲練習(vocal play) ⑤亂語(jargon)
(A)①→②→③→④→⑤
(B)①→②→④→③→⑤
(C)②→①→⑤→③→④
(D)②→①→④→③→⑤
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統計: A(62), B(273), C(7), D(12), E(0) #3286231
統計: A(62), B(273), C(7), D(12), E(0) #3286231