讲硬度, 金刚钻是独一无二的.With regard to hardness, the diamond is in a class by itself.金刚钻闪出灿烂的光辉.The diamond sparkles with brilliant light.金刚钻是一种宝石.A diamond is a precious stone....
These cells had retained a diploid Karyotype.这些细胞持有二倍体核型.Comparatively , PCR - Acc molecular marker produced two genotypes , G - type and T - type for both autotetraploid and diploid rice.而用PCR-Acc检测, Wx基因表现为G - 型和T - 型....