(一) 白菜下种前,带领××班做翻地实习,根据过去经验,估计到一定会有少数人因为有意无意的破坏操作规程造成返工浪费的事,所以事先把几个细心认真的学生组成第一组,准备作示范;另外几个粗心大意和平时劳动不好的组成第二组;其余学生分为四个组。每组翻地1/10亩。 (A) cabbage under the species, led by × × classes do internship, according to past experience, it is estimated that there will be a small number of people because of intentional or unintentional damage to the operating procedures caused by rework waste, so in advance a few careful students Make up the first group, ready for demonstration; in addition to a few careless and peacetime poor working group composed of the second; the rest of the students are divided into four groups. Each group turned to 1/10 acres.