下列微生物中能固氮的是 A: Rhizobium B: Agrobacterium C: Corynebacterium D: Halobacterium

下列那一种致病菌能在上皮细胞( epithelial cells)内复制,并藉由形成肌动蛋白尾(actin tail)移动至紧邻细胞内?____ A: 白喉棒状杆菌( Corynebacterium diphtheriae) B: 单核球增生李斯特菌( Listeria monocytogenes) C: 绿脓假单胞杆菌( Pseudomonas aeruginosa) D: 肺炎克雷白氏菌( Klebsiella pneumoniae)

A<br/>9-year-old girl develops fever and severe pain on the right side of<br/>her throat. On examination, redness and swelling in the right<br/>peritonsillar area are seen. A peritonsillar abscess is diagnosed.<br/>The most likely organisms to be cultured from this abscess are A: Staphylococcus<br/>aureus B: Streptococcus<br/>pneumoniae C: Corynebacterium<br/>species and Prevotella melaninogenica D: Viridans<br/>streptococci and Candida albicans E: Normal<br/>oral nasal flora