A:开关S断开
B:R4断路故障
C:R2短路故障
D:电容器上极板下降(不碰到液滴)
如图示两个遗传系谱图中患者均患有单基因遗传病,相关叙述正确的是()
-- Do you know the: famous basketball player Kobe has said goodbye to the NBA?
-- Yes. I'm afraid l will see him on screen.