分类学上的种是根据表型不连续性而不是根据互交可孕性来确定的.Taxonomic species are defined on phenetic discontinuities, not on interfertility.把无融合生殖小种 ( 无性种 ) 作为分类学上的种来承认,这点具有更大的迷惑性.The temptation to recognize apomictic microspecies ( agamospecies ) a...
He was evasive and noncommittal.他闪闪烁烁,不肯说明确.'Billy, I think it's your turn to wash the dishes,'said Jane. A noncommittal grunt was his only reply.“ 比利, 我想这次该轮到你刷盘子了, ” 简说. 他只是不置可否地咕哝了一声算作回答.Sylvia's f...