Which one of the following microorganisms is closely associated with dental caries? A: C. albicans B: Streptococcus mutans C: P. melaninogenica D: Neisseria subflava E: S. epidermidis

Which<br/>of the following is the predominant flora of the mouth that is the<br/>major cause of dental caries () A: α-hemolytic<br/>streptococci B: Lactobacillus C: epidermidis D: coli E: fragilis

Which point is not applied to diffentiate S. aureus and S. epidermidis? A: Pigment of colony B: Arrangement under microscope C: hemolytic cycle on bloody agar plate. D: Coagulase test.

Which of the following is the predominant flora of the mouth that is the major cause of dental caries 未知类型：{'options': ['[tex=0.643x0.786]hlJJ6/DUY+n2/FE6M2JdRA==[/tex]-hemolytic streptococci', 'Lactobacillus', 'S. epidermidis', 'E. coli', 'B. fragilis'], 'type': 102}