用酒精浸泡过的手帕为什么烧不坏？请说明其中的道理．

搜题请搜索小程序“爱下问搜题”

问题问答题

答案

因为手帕上有酒精和水的混合物，酒精燃烧时，水会蒸发，吸收周围的热量，周围温度降低，达不到手帕的着火点．所以手帕烧不坏．

选择题

________ about wild plants that they decided to make a trip to Madagascar for further research. [ ]

A. So curious the couple was

B. So curious were the couple

C. How curious the couple were

D. The couple was such curious

问答题简答题

沉香除行气止痛，用治寒凝气滞胸腹胀痛外，还具哪些功效？主治何病证？