Recombinant plasmid pDAlllS was constructed by inserting 1.7 kb aprA into the Nrul site of aveD.将1.7kb安普霉素抗性基因aprA插入aveD的 NruI位点,得pDA1118.Aati - tumors : The dye lignin has the cytotoxin activeness to the human boby rhin...
He halted before the door in indecision.他在门前犹豫不决地停了下来。Train services were halted as the fire raged for more than four hours...火灾肆虐超过4个小时,期间列车停止了运行。Godfrey's voice broke, and halted.戈弗雷声音都变了,停顿下来。They halted financia...
我骑着无鞍马来到了牧场。I rode bareback to the paddock.他们带着牲畜迁往高原上的牧场.They move with their flocks to upland pastures.马儿正在牧场上吃草.Horses are grazing in the pasture....