The technique has been to mutate the genes by irradiation or chemicals.该技术是通过放射线照射或者使用化学方法使基因变异。A newer anti-HIV drug called pyridinone caused HIV to mutate into a form which could not reproduce or infect new cells.一种叫作吡...
他们委任选举区的评判员及在大选日工作的官员.They appoint precinct election judges and other election - day officials.人口普查数据决定着联邦资金的分配和选举区的划分.Census data determines the distribution of federal funds and electoral district boundaries.你生活在哪个选举区?...
If twill tape is useful, slit the hole with a hemostat.如果用的是斜纹带就要用止血钳来张开小口.The physician - in - charge is using the hemostat to stop the patient's bleeding.主治医师 正用止血钳给病人止血....