Romance combined features of both vernacular epic and vernacular lyric。（)
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水中含有哪些杂质？如果这种水用作锅炉给水，有什么危害？
According to Aristotle, Form. （or Idea) exists as a higher reality than the material world。（)
苟性脆化产生的条件有哪些？供热锅炉防止苟性脆化的主要措施是什么？锅炉排污能否防止苟性脆化？
The Romans were extremely intolerant of foreign religions。（)
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