Chemistry did not emerge as a science
until after the scientific revolution in the seventeenth century and then only
rather slowly and laboriously. But chemical knowledge is as old as history,
being almost entirely concerned with the practical arts of living. Cooking is
essentially a chemical process; so is the melting of metals and the
administration of drugs and potions. This basic chemical knowledge, which was
applied in most cases as a rule of thumb, was nevertheless dependent on previous
experiment. It also served to stimulate a fundamental curiosity about the
processes themselves. New information was always be A. The scientific revolution in the seventeenth century. B. Reasons that chemistry developed slowly as a science. C. The practical aspects of chemistry. D. Difficulties of organizing knowledge systematically. 更多"Directions: There are 2 passages in"的相关试题: [单项选择] Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A) , B) , C) , and D) . Passage One
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