• 2022-05-28
    Needs of different levels should be met one by one, level by level.
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      All languages have two general levels of usage: a correct level and an incorrect level.

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      Generally speaking, human needs develop from low level to high level.( )

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      Categorization is the process of classifying our experiences into different categories based on commonalities and differences. There are basic level, s_______ level, and s_______ level.

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      In Internet consumption, people's needs are developing from high level to low level.

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      中国大学MOOC: _________ is one of the design features of human language which refers to the phenomenon that language consists of two levels: a lower level of meaningless individual sounds and a higher level of meaningful units.