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初中生物教材中的“用显微镜观察蛔虫卵”实验,是运用直接涂片法观察寄生虫卵。我们在实际操作中发现该方法存在着一些不足:
In the junior high school biology textbook, the experiment of “observing tapeworm eggs with a microscope” is a direct smear method to observe parasite eggs. We found that there are some deficiencies in the actual operation: