高中化学(甲种本)第三册123页第5题为“分子里含有碳、氢、氧三种元素的烃类衍生物,已学过的有醇、醚、醛、酮等类,假定它们分子里都含有3个碳原子,写出各类物质的结构式,说出名称,并指出哪些互为同分异构体?”教参上的答案为: High School Chemistry (A kind) This is the third volume of 123 pages. The 5th title is “Hydrocarbon derivatives containing carbon, hydrogen, and oxygen in the molecule. Alcohols, ethers, aldehydes, ketones, etc. have been studied. They all contain 3 carbon atoms in their molecules, write the structural formulae of various substances, give their names, and indicate which are the isomers of each other?" The answers to the teachings are: