例句與造句

1. the results show that ( 1 ) loops are in general more variable than stems, and in loops a strong adenine bias are observed : ( 2 ) there does not exist a saturation effect in stems, loops or all positions of the 16s rrna gene fragments : ( 3 ) in the molecular cladogram, bagarius forms a sister group with glyptothorax, and euchiloganis forms a sister group with pareuchiloglanis, and exostoma forms a sister group with glyptosternum : ( 4 ) the phlogenetic positions of pseudecheneis, exostoma and glyptosternum are not recognized; the glyptosternoid fishes are not monophyly although they are defined by 13 osteological apomorphies; the incongruence of cladograms between molecular and morphological sets may be caused by less informative sites of the 550 homologous sites; ( 5 ) e . davidi and e . kishinouyei could be the same species according to the genetic distances; p . sinensis and p . anteanalis could be too
   結(jié)果表明：(1)環(huán)區(qū)平均變異位點較莖區(qū)多，有很強的a偏好性；(2)沒有替代飽和現(xiàn)象；(3)分子系統(tǒng)樹上?屬和紋胸?屬構(gòu)成姐妹群，石爬?屬和?屬構(gòu)成姐妹群，?屬和原?屬構(gòu)成姐妹群；(4)?屬、原?屬和褶?屬的系統(tǒng)發(fā)育位置不定，??魚類并未形成一個單系類群；可能的原因是所得到的16srrna基因片段信息位點太少；(5)青石爬?和黃石爬?可能是同一物種，中華?和前臀?可能是同一物種。
2. It's difficult to find davidi in a sentence. 用davidi造句挺難的