Edward Jenner　discovered（）at the end of the 18th century._精华吧

Edward Jenner　discovered（）at the end of the 18th century.

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Edward Jenner　discovered（）at the end of the 18th century.

A.hepatitis vaccine

B.varicella vaccine

C.influenza vaccine

D.smallpox vaccine

正确答案：smallpox vaccine

Tag：医药英语时间：2022-01-12 15:45:01

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