2017新托福聽(tīng)力解析:細(xì)菌傳播
Lecture 1
學(xué)科分類:Biology
標(biāo)題:bacteria傳播產(chǎn)生films的幾個(gè)步驟
內(nèi)容回憶:free floating
Attach on wet surface
Produce chemical signals
Produce larger communities
Produce chemical channel
Free floating again
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