[名词解释] Outbred stock：封闭群动物

Cross：杂交 C57BL/6J//Lac 下列何项与麻子仁丸方义不符（） ["麻子仁润肠通便 ","大黄通便泄热 ","芍药养阴和里 ","杏仁降气润肠 ","枳实、厚朴行气宽中"] LCM：淋巴细胞性脉络丛脑膜炎 Laboratory animal environmental ecology：实验动物环境生态学 Outbred stock：封闭群动物