Pathogenic E. coli general include four types enteropathogenic E.coli, enterotoxigenic E.coli, enteroinvasive E.coli, enterohemorrhagic E.coli, E. coli 0157 belong to which type(<br/>) A: enteropathogenic B: enterotoxigenic C: enteroinvasive D: enterohemorrhagic E: coli F: coli G: coli H: coli

The pathogenic characteristics of enterotoxigenic Escherichia coli shall be excluded: A: Adhesion to the epithelial cells of the upper intestinal mucosa B: Production of heat and / or heat labile enterotoxins C: Toxicity can be transmitted to other E.coli through plasmids D: Enterotoxin causes severe damage to mucous membrane