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教一次函数时,在一本教辅书上看到这样一题:某医药研究所开发一种新药,在试验药效时发现,如果成人按规定剂量服用,那么服药后每毫升血
Teach a function, in a supplementary book to see such a question: a pharmaceutical research institute to develop a new drug, the efficacy of the trial found that if the adult prescribed dose, then taking every milliliter of blood after taking the medicine