短语词组短语B -cell growth factor-2 细胞生长因子B cell growth factor B 细胞生长因子;细胞发展因数b cell growth factor 1 B 细胞生长因子pre -B cell growth factor B前体细胞生长因子Pre -B-cell growth Stimulating factor 刺激因子;长刺激因子;细胞增长刺激因子 返回 b cell growth factor