Immigration would not, on current trends, make up the shortfall in the working age population. 移居入境是不乐观的，在现实的趋势来看，还不足以去弥补工作年龄阶段的人口。
The invention discloses a separated candida cell group, and most cells in the cell group are in the same age stage. 本发明公开了一种分离的念珠菌细胞群，所述细胞群中大多数的细胞处于同一年龄阶段。
