HBV的核酸类型为 ( )HBV的核酸类型为

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HBV的核酸类型为 ( )

HBV的核酸类型为 ( )

A.双链环状DNAB.双链分节段DNAC.单负链RNAD.双链环状RNAE.单正链RNA

参考答案:

答案:A