注入鱼类受精卵的外源DNA在胚胎发育过程中经历复制扩增、到原肠期后逐渐降解或丢失，大多数外源DNA能整合到受体细胞的基因组。
有天下第一行书之誉的《兰亭集序》是出于（）手笔 ["颜真卿","李邕","欧阳通","王羲之"]
Switch R1 is part of the Company VTP domain. What’s true of VTP Pruning within this domain？（） ["It does not prune traffic from VLANs that are pruning-ineligible","VLAN 1 is always pruning-eligible","It will prune traffic from VLANs that are pruning-ineligible","VLAN 2 is always pruning-ineligible","None of the other alternatives apply"]
《铁路旅客运输管理规则》规定，列车运行途中的临时稿件由（）审定。 ["列车长","铁路总公司","列车值班员"]
哪个不是企业战略管理的特点（） ["层次性","整体性","长期性","权威性"]
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