---- Could you lend me a pen ? ---- Of course . Here are two and you can take ______ of them . A. both B. all C. any D. either 答案:D厨房中包含着许多物理知识.如:用手拿刚出笼的馒头时,若先在手上沾些冷水,就不会感到很烫,这是由于汽化吸热汽化吸热的缘故;在水中下饺子,饺子不会焦;在油中煮饺子,饺子易焦,其原因是水的沸点低于油的沸点水的沸点低于油的沸点;冬天,碗中的水结冰,该过程放热放热(填“吸热”或“放热”).