题目内容

MHC class II molecules can present___.

A. Endogenous antigens
B. Exogenous antigens
C. Both A and B
D. Neither A nor B

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Which of the following microbial metabolites can be harvested for industrial use? 1. Primary metabolites 2. Secondary metabolites

A. 1
B. 2
C. Both 1 and 2
D. Neither 1 nor 2

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In making the following food, which one usually requires the use of yeast? 1. Bread 2. Yogurt 3. Wine 4. Dried beef

A. 1, 2
B. 1, 3
C. 2, 4
D. 1, 4

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Which of the following is correct about the use of microorganisms in sewage treatment?

A. Microorganisms are used rarely in sludge processing
B. Activated sludge undergoes aerobic decomposition
Cannot be in the form of fuel cells
D. Sludge treatment are usually in very small scale

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Which of the following plays a critical role in both the sulfur cycle and the phosphorous cycle?

A. Thiobacillus
B. Nitrobacter
C. Saccharomyces cerevisiae
D. Lactobacillus

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MHC class II molecules can present___.

A. Endogenous antigens B. Exogenous antigens C. Both A and B D. Neither A nor B

Which of the following microbial metabolites can be harvested for industrial use? 1. Primary metabolites 2. Secondary metabolites

In making the following food, which one usually requires the use of yeast? 1. Bread 2. Yogurt 3. Wine 4. Dried beef

Which of the following is correct about the use of microorganisms in sewage treatment?

Which of the following plays a critical role in both the sulfur cycle and the phosphorous cycle?

A. Endogenous antigens
B. Exogenous antigens
C. Both A and B
D. Neither A nor B