Which of the following particles can be observed under an ordinary optical microscope？A. Pollen grains B. Starch grains C. Crystals D. Ribosome
Which of the following particles can be observed under an ordinary optical microscope？
A、 Pollen grains
B、 Starch grains
C、 Crystals
D、 Ribosome
发布时间：2024-11-16 15:05:03
