The bill has the following characteristics: A: right to be paid B: non causative nature C: requisite in form D: recoursement

In acute infective endocarditis, the most common causative organisms are A: streptococcus viridans B: staphylococcus albus C: staphylococcus aureus D: rickettsiae

In acute uncomplicated UTI acquired in the community, what is by far<br/>the commonest causative bacterium? () A: coli B: Anaerobic bacteria C: Viruses D: Tubercule bacilli E: Staphylococci

Which of the following is Koch’s basic principle of proving whether a microorganism is the causative agent of a disease? ( ) A: Pasteur Effect B: Koch Postulates C: Species Principle D: Immune Principles

Generally speaking, what does the developing direction of a disease depend on? A: The quantity and intensity of causative factors B: Whether the precipitating factors exist or not C: The contrast between the strength of damage and anti-damage factors D: The resistance of the organism to a disease E: The ability of the organism to maintain homeostasis