root and stem
Stem cell in epidermis是()。
_____
Reducing the clearance between a valve stem and rocker arm will result in the valve ()
hematopoietic stem cell,HSC (造血干细胞)
_____
If you increase the clearance between a valve stem and rocker arm, which of the listed condition will occur?()
If you increase the clearance between a valve stem and rocker arm, which of the listed condition will occur?()
totipotent stem cell,TSC (全能干细胞)
Reducing the clearance between a valve stem and rocker arm will result in the valve ()