1. For further studying the genetic mechanism of the reproductive isolation phenomenon of interspecific hybrid, paraffin sections of testes from 13 sexually mature male mules (Equus asinus×Equus caballus) and 12 hinnies (Equus caballus×Equus asinus) were prepared, and the samples of Giemsa meiosis and AgNO 3 synaptonemal complexes were observed and compared with spermatocyte meiosis of horse and donkey under light microscope and electronic microscope.
    为了进一步探讨种间杂种生殖隔离现象的遗传机理，本研究采用性成熟公骡的睾丸为材料，制备组织切片和减数分裂联会复合体标本进行观察，发现个别性腺发育较好的个体虽然减数分裂存在大量异常，但确有少数精母细胞完成了减数分裂并产生精子。

2. Equus asinus

2. I don`t know if there`s already a designated creature, which holds the title of National Animal of Bahrain, but to my mind none would be more deserving than Equus asinus - the donkey.
    我不知道是否已经存在指定的动物，因为它的标题全国动物巴林但在我看来无人能够更值得比普骡-驴。

3. METHODS TLC was used to identify 5 Chinese medicines, which were Angelica sinensis, Codonopsis pilosula, Paeonia lactiflora, Rehmannia glutinosa and Glycyrrhiza uralensis and chemical reaction in tubes was used to detect Equus asinus.
    方法以薄层层析法鉴别当归、党参、芍药、甘草、地黄5味药材；以试管反应鉴别阿胶；