中国大学MOOC: Using terephthalic acid and ethylene glycol, and by the reaction of carboxyl and hydroxyl groups, _________ is synthesized.
举一反三
- Phenolic compounds are secondary metabolites synthesized through the shikimic acid and phenylpropanoid pathways.（）
- 中国大学MOOC: Screaming is people’s ________ reaction to danger.
- 中国大学MOOC: What was the reaction of the hotel staff to Benjamins efforts?
- 中国大学MOOC:"In the following groups of vowels, are mid vowels.";
- Which of the following material can be synthesized at liver only? () A: fat B: cholesterol C: protein D: fatty acid E: urea