Crop straw is the most abundant collulose in the world.The special structure of the collulose molecule,along with the particularity of the existence state of a majority of collulose materials(exist in the form of wood)in nature,so,the ratio of using the resourse is low now,what is more,most of it have become the source of pollution for being discarded in natural environment or being burnt.How to transform the discarded straw fibre into monosaccharide or proteins on a large scale and transform alcohol...