( ) do not require O2 for growth but grow better in its presence. A: obligate aerobes B: facultative anaerobes C: aerotolerant microbes D: strict anaerobes

According<br/>to the demand for oxygen, Escherichia coli belongs to ( ) A: Facultative<br/>anaerobes B: Obligate<br/>aerobes C: Microaerophiles D: Obligate<br/>anaerobes

Organisms that do not require oxygen for growth but grow better in its presence are called A: facultative anaerobes B: microaerophiles C: obligate aerobe D: obligate anaerobe

() are free-living organisms that are capable of becoming parasitic<br/>if placed in a situation conductive to such a mode. A: opportunistic parasite B: Obligatove parasites C: Endoparasite D: Facultative parasites

‌_____既能在有氧也能在无氧条件下生长‎ A: Strict anaerobes 严格厌氧微生物 B: Strict aerobes 严格好氧微生物 C: Facultative anaerobes 兼性厌氧微生物 D: Microaerophile 微需氧微生物

_____既能在有氧也能在无氧条件下生长 A: Strict anaerobes 严格厌氧微生物 B: Strict aerobes 严格好氧微生物 C: Facultative anaerobes 兼性厌氧微生物 D: Microaerophile 微需氧微生物

有关马耳他布鲁氏菌( Brucella melitensis)的特征,下列何者错误? ____ A: 为兼性厌氧菌( facultative anaerobic) B: 是波浪热( undulant fever)的致病菌 C: 为革兰氏阴性杆菌 D: 可在巨噬细胞( macrophages)内生长