Which one of the following antibiotics is the last resort used to treat infections of Gram-positive bacteria resistant, including vancomycin- and methicillin-resistant Staphylococcus aureus.
A. Chloramphenicol,
B. Oxazolidinones,
C. penicillin;
D. tetracyclines
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Which enzyme produced by S produced by S. aureus can enhance spread of bacteria to other location?
A. Hyaluronidase;
B. β-lactamase
C. Staphylokinase;
D. Lipases ;
Which ones of the following conditions are local diseases caused by staphylococcus?
A. Impetigo
B. folliculitis
C. carbuncle
D. toxic-shock syndrome
1、新刺激与原有条件刺激越相似，泛化越明显。
A. 对
B. 错
广告宣传是大多数企业用于帮助消费者进行刺激辨别的主要手段。
A. 对
B. 错
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