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来源:雅诚德英语网
The study included 144 volunteers who were asked to compare what they believed were conventionally and organically produced chocolate sandwich cookies, plain yogurt and potato chips.
这项研究包括144名志愿者,他们被要求比较了他们认为是传统和有机生产的巧克力三明治饼干,纯酸奶和薯片。