The implementation of lexical insertion rules need to be subject to no restrictions.
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Compared to phonetics, phonology is more concerned with the organisation of speech sounds in relation to the conveyance of meaning. ()
There is a three-word sentence stage in first language acquisition. ()
当客人退房时，服务员应（）。
A. 立刻为客人叫车
B. 进入客房检查
C. 向总台报告
D. 向大堂经理报告
活泼好动、敏感、反应迅速、注意和兴趣易转移，表现外向，这是（）的气质特点。
A. 多血质者
B. 胆汁质者
C. 粘液质者
D. 抑郁质者
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