Firs, spruces and pines are conifers.冷杉 、 云杉和松树都是针叶树.Sarvas discusses the nature of the " lethal load " in conifers.萨维斯 讨论了针叶树的致死的基因性质.The xylem of ferns and conifers contains only tracheids.蕨类植物和针叶树的木质部仅含有管胞....
Several other conifers produce small male catkins.其它几种针叶树产生小雄花序.Firs,spruces and pines are conifers.冷杉、云杉和松树都是针叶树。Sarvas discusses the nature of the " lethal load " in conifers.萨维斯 讨论了针叶树的致死的基因性质.The xylem of ferns and c...
( Transporters are also subject to record - keeping and labeling requirements. )( 运输者也要接受做记录和分类的要求. )Generate a final statement, the contents of commodity labeling, price, inventory, suppliers.最后生成一张报表, 内容有商品标号 、 单价 、 库存...