在初中《植物学》课本中有这样一个问题:“你怎样鉴定枝条上的一片叶,是一片单叶还是复叶上的一片小叶?”对于这个问题在教学参考书上的解释为:“生在节上就是一片单叶,不生在节上的就是复叶上的一片小叶,”因为茎上着生叶的部位叫做节。笔者认为,教学参考书上的解释并没有不对,而是题目的设计有些问题。枝条是茎和叶的合称,既然是枝条上面的一片叶,那当然就 In the junior high school “Botany” textbook, there is such a question: “How do you identify a leaf on a branch, is it a single leaf or a leaflet on a compound leaf?” The explanation in the reference book for this question is: In the festival is a single leaf, not on the festival is a leaf on the compound leaf, "because the stem on the site of the leaf called the festival. The author believes that the explanation on the teaching reference book is not wrong, but there are some problems in the design of the title. Branches are the collective name of stems and leaves. Since it is a leaf above the branches, of course,