To set up the animal model of renal-deficiency and luteal-insufficiency abortion rats.To observe the effect of Prescription on Zhuyun-Ⅲon cytokines、Pand NO of spontaneous abortion rats and investigate the relationship among them. Setting up the animal model of renal-deficiency and luteal-insufficiency abortion rats with Hydrea and Mifepristone and grouping them at random in 4 teams.Each team has different treatment.Comparing the different level of IL-2、IL-10、Pand NO in blood serum of the rats and counting t...