此外，杨锦元的母亲患食道癌，却没有开具。

In addition, the Yang Jinyuan mother contracts carcinoma oesophagi, actually has not drawn up disease certificate.

youdao

罗锦坤，元昌安，杨文，等。基于基因表达式编程算法的复杂网络社区结构划分[J]。计算机应用，2012,32 2：317 - 321。

LUO J, YUAN c, YANG w, et al. Community structure division in plex works based on gene expression programming algorithm [J]. Journal of Computer Applications, 2012, 32 (2) : 317-321.

youdao