问题
问答题 简答题
高产肥沃土壤有什么特点？
答案
参考答案：
（1）耕层深厚，土层构造良好。
（2）有机质和养分含量丰富。
（3）酸碱度适宜，有益微生物活动旺盛。
（4）地面平整。
（5）土温稳定，耕性良好。
（6）作物产量高。
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高产肥沃土壤有什么特点？
参考答案：
（1）耕层深厚，土层构造良好。
（2）有机质和养分含量丰富。
（3）酸碱度适宜，有益微生物活动旺盛。
（4）地面平整。
（5）土温稳定，耕性良好。
（6）作物产量高。
Jim is the son of a farm owner. One New Year's Day, when he was 15 years old, his father him to work on the farm for one year in his free time. Jim was with his father's idea. "That isn't my job. I have schoolwork to do. " Hearing this, his father said, "I will promise(答应) to give you the best present if you finish one year's work. " Jim thought for a while and . Starting one Saturday, the boy got up early and worked until evening, just like any other farmer. Time passed . Jim's crops grew very well. On the last day of the year, the father called his son to him. "I'm happy to see that you have worked very hard the whole year," said the father. "Now, tell me you want." The boy smiled and showed his father a big piece of bread made from his wheat. "I've already got the present. No pain, no gain.(不劳无获） I think this is what you wanted me to ." His father was very pleased to hear that.
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