The current demand level is much lower than last year's.
目前的需求水平仍比去年低很多。
Maslow's "demand level theory" has announced the different levels of the human demand.
马斯洛的“需求层次理论”揭示了人类需求的不同层次。
In the analysis, the author USES the life-period theory, double-factors theory, and demand-level theory.
在对具体问题的分析中，笔者运用了生命周期理论、双因素理论和需求层次理论等理论来说明问题。
In the analysis, the author USES the life-period theory, double-factors theory, and demand-level theory.
在对具体问题的分析中，笔者运用了生命周期理论、双因素理论和需求层次理论等理论来说明问题。
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