论文部分内容阅读
美人蕉在化学实验教学中的应用周改英（安徽省铜陵县第二中学２４４１００）美人蕉属多年生草本植物，叶片大且工生，呈长椭圆形，有羽状叶脉，总状花序，花呈红色或黄色，蕊略带紫色．街心、花园、居民栽种，夏末秋初盛开．笔者在教学中利用美人蕉的花Ｚ汁代替品Ｖ红、花...
Application of Canna in Chemistry Experiment Teaching Zhou Gaiying (Tongling No.2 Middle School No.244100, Anhui Province) Canna is a perennial herbaceous plant with large leaves and workmanship. It is oblong in shape, with pinnate veins, racemes, and red or yellow flowers. The heart is slightly purplish. The heart of the street, gardens, and residents are planted and bloom in late summer and early autumn. In the teaching, the author used the cannabis flower juice instead of V red, flower...