例句與造句

1. Meanwhile , base composition in rrna genes , the secondary structrues of trna and the potential stem - loop structure in the noncoding region were also analysesed in the present study
   同時分析了d1na基因的堿基組成、 trna的二級結構、非編碼區潛在的莖環結構。
2. It's difficult to find stem-loop structure in a sentence. 用stem-loop structure造句挺難的