题目内容

In the growth of bacteria, the most typical phase of the biological characteristics is ()

A. lag phase
B. Logarithmic phase
C. stationary phase
D. decline phase
E. none of the above

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Which one is associated with bacterial identification ()

A. heat source
B. antibiotics
C. vitamin
D. bacteriocin
E. none of the above

The method of killing microorganisms, including spores, is called ()

A. anti-corrosion
B. sterile
C. disinfection
D. sterilization
E. none of the above

Which component is activated earliest in alternative pathway of complement activation ()?

A. C1
B. C3
C5
D. C4
E. C2

The humoral immunity is mediated by ()

A. T cells
B cells
C. Neutrophils
D. NK cells
E. mast cells

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