题目内容

What is the amount of AGAR in the semisolid medium? ()

A. 1%-1.5%
B. 0.3%-0.5%
C. 1.5%-2.5%
D. 4%-5%

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The sequence of reagents used in gram staining is A:Crystal violet B:Gram’s iodine C:Ethanol, 95% D:Safranin solution ()

A-B-C-D
B-A-C-D
C. D-A-B-C
D-B-C-A

What is the color of gram-positive bacteria after garmm-staining? ()

A. pink
B. brown
C. blue
D. yellow

What kind of culture medium is SS medium? ()

A. Basic Medium
B. Nutrient Medium
C. Selective Medium
D. Anaerobic Medium

Semisolid media are usually used for testing: ()

A. Bacterial morphology
Bacterial virulence
C. Bacterial resistance
D. Bacterial athletic ability