题目内容
When a dog is barking, you assume it is barking for something or at someone that exists hear and now. It couldn’t be sorrowful for some lost love or lost bone. This indicates the design feature of __________.
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______ answers such questions as how we as infants acquire our first language.
__________ deals with language application to other fields, particularly education.
Speaking is the quickest and most efficient way of the human communication systems.
Language is written because writing is the primary medium for all languages.
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