送交者: xj 于 2005-11-05, 17:38:11:
回答: 是病菌还是病毒?怎么区分?请方家指点。 由 松鼠 于 2005-11-05, 17:32:34:
bacteria (thousand nm level) is much larger than virus (20~200nm?). Practically speaking, you can see quite a lot bacteria using 200X regular microscope, but you need a electroscope to see the virus.
The human cells are bigger than most bateria.