双语例句
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Methods Cross-sectional study.
方法 采用横断面研究。
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Design: This was a cross-sectional study.
设计：这是一项代表性研究。
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DESIGN: Prospective, cross-sectional study.
设计：前瞻性的横向研究。
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Method: A cross-sectional study was conducted.
方法：横断面调查研究。