tumor stem cell,TSC(肿瘤干细胞)
参考答案：
肿瘤中具有自我更新能力并能产生异质性肿瘤细胞的细胞。
I'm sure you'd rather she went to school by bus， ？
A．hadn't you
B．wouldn't you
C．aren't I
D．didn't she
将一个棱长60cm的正方体水箱装满水，倒入一个长80cm，宽30cm的长方体水箱中，水深多少？
