Functional grammar aims to reveal that language is a means of social interaction.
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闭合放大电路是指引入反馈后的放大电路。由基本放大电路和反馈电路组成。
People are concerned about corruption and social ___________.
宿舍组网中,配置路由器AP功能时,需要将网线连接至路由器的WAN口。
Geographical barriers are the only source of regional variation of language.