Handprints in AGAR jelly before and after testing were used to determine the presence of bacterial transfer.

手指在触摸之前之后均在细菌培养板上留指印以检测转移的细菌是否存在。

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Handprints in AGAR jelly before and after testing were used to determine the presence of bacterial transfer.

手指在触摸之前之后均在细菌培养板上留指印以检测转移的细菌是否存在。

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