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Passage Three [br] How do traditional vaccines work?To provoke immune systems wi
Passage Three [br] How do traditional vaccines work?To provoke immune systems wi
游客
2023-10-21
70
管理
问题
Passage Three [br] How do traditional vaccines work?
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答案
To provoke immune systems with dead or weakened live viruses.
解析
原文最后一段对传统疫苗和新型疫苗进行对比描述,传统疫苗使用死亡的或弱化的病毒来激发免疫系统,故答案为“To provoke immune systems with dead or weakened live viruses.”。
转载请注明原文地址:http://tihaiku.com/zcyy/3118317.html
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