Pili are tubular shafts in___bacteria that serve as a means of___.
A、gram-positive,geneticexchange
B、gram-positive,attachment
C、gram-negative,geneticexchange
D、gram-negative,protection
发布时间:2025-07-22 13:15:38
A、gram-positive,geneticexchange
B、gram-positive,attachment
C、gram-negative,geneticexchange
D、gram-negative,protection