【判断题】若【图片】均为方程组【图片】的解,则【图片】也是方程组【图片】的解。
【简答题】CTL主要通过穿孔素/颗粒酶途径和 途径实现对靶细胞的杀伤。
【单选题】允许尺寸的变动量叫公差。公差 (T)= ( )。
【简答题】A.He didn't like women. B.Because he hated St. Valentine. C.Because he believed bachelors made better soldiers. D.He didn't approve of celebrations.
【简答题】已知方程 的解也是方程 的解,则 =_________.
【简答题】A.he didn't like women. B.because he hated St. Valentine. C.because he believed bachelors made better soldiers. D.he didn't approve of celebrations.
【判断题】CTL主要通过两条途径杀伤靶细胞。1穿孔素/颗粒酶途径;2Fas/FasL途径。
【单选题】回收站中可以暂存的是硬盘上删除的( )对象。