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1·The suitable therapy is gonadotropic agents of two-step compound therapy.

最佳的治疗方法是用促性腺制剂及两阶段复合治疗。

2·The suitable therapy is gonadotropic agents or two step compound therapy.

最佳的治疗方法是用促性腺制剂及两阶段复合治疗。

3·Low dosage gonadotropic hormone was applied to induce of double calving on this paper and the factor of success was analyzed.

本文研究了应用低剂量促性腺激素处理诱导黄牛一胎双犊，分析了影响成功率的因素。

4·Human chorionic gonadotropic (hCG) and human placental latogen (hPL) are peptide hormones produced and excreted by placental trophoblastic cells during pregnancy.

人绒毛膜促性腺激素、人胎盘生乳素是胎盘滋养细胞合成和分泌的肽类激素。