问题
填空题
由于环境因素或人为因素的干扰,致使土地生态系统的结构和功能失调叫______。
答案
参考答案:土地退化
由于环境因素或人为因素的干扰,致使土地生态系统的结构和功能失调叫______。
参考答案:土地退化
This is a Chinese girl. 1 name is Han Mei. She is twelve. She’s in No.3 Middle School. She is in Class One, Grade Two. Jim is 2 American boy. He’s eleven. He is in No.3 Middle School, 3 . Mrs. Wang is their English teacher. She is a 4 teacher. The 5 love her very much .
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