科学家相信一年前或几个月以前，世界的某个地方，猪流感病毒感染了人并发生了变异，之后开始在人之间传播。
Scientists believe that somewhere in the world, months or even a year ago, a pig virus jumped to a human and mutated, and has been spreading between humans ever since.
建选17号97.44%的遗传信息分别来自不同的亲本基因型，并发生了部分遗传变异；
Most genetic information(97.44%)of Jianxuan No. 17 came from its three parents, and few came from genetic variation.
病例4 ~ 6虽有胆管变异，但无相关并发症的发生。
Case 4 ~ 6 present anatomic variation of bile duct, but no related complications occurred.
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