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兴奋反应呈量效依赖关系。
The excitatory effect showed a dose response relationship.
youdao
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设计：分层抽样，随机分组对照，量效分析。
DESIGN: Grade sampling, randomized controlled quantitative analysis.
youdao
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设计：分层抽样，随机分组对照，量效分析。
DESIGN: Grade sampling, randomized controlled quantitative analysis.
youdao