activity of lactate dehydrogenase的用法和样例：
- The activity of lactate dehydrogenase (LDH) in the culture medium was detected.
- Previous studies in rodent model have had demonstrated that Streptococcus mutans which lack the enzyme activity of lactate dehydrogenase (LDH), had significantly less cariogenic.
- Keywords activity of lactate dehydrogenase;isoenzyme spectrum;hypoxia-hypercapania;plateau zokor（Myospalax baileyi）;
- Suppose skeletal muscle were devoid of lactate dehydrogenase, could it carry out strenuous physical activity; that is, could it generate ATP at a high rate by glycolysis? Explain.