题目

40. She was reading the newspaper attentively, but she looked _____ the newspaper when she heard them talking about her.  A. away from              B. out for                            C. up away                   D. up from 答案：A8．咖啡酸的结构如图所示．关于咖啡酸的描述不正确的是（　　）A．分子式为C9H8O4B．1mol咖啡酸最多能与4mol氢气发生加成反应C．遇溴水，既能发生取代反应又能发生加成反应D．能还原酸性KMnO4溶液，说明其分子中含有碳碳双键