【正确答案】Coarticulation is a kind of phonetic process in which silnultaneous or overlapping articulations are involved. Coarticulation can be further divided into anticipatory coarticulation and perseverative coarticulation.

【答案解析】[解析] 本题考查语音中协同发音的概念，协同发音是一种涉及到同时或重合发音的语音过程。