Poly(methyl methacrylate) (PMMA) was used to wrap alumina-siloxane sol through emulsion polymerization. A kind of suspen......

适应性教法需要寻求教法的有效性和个体差异之间相契合的途径。ER效应是适应性教法运用中出现的一种现象,广泛出现在以文字、图片......