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细心带来好风景。别涅迪克博士是法国一家化学研究所的高级研究员,以认真仔细而著称。这天,在实验室里,他准备将一种溶液倒入烧瓶,一不小心
Carefully bring a good scenery. Dr. Benedict is a senior researcher at a French institute of chemistry and is known for being careful and careful. This day, in the lab, he prepared to pour a solution into the flask, accidentally