Tuesday, April 30, 2024
生态果园实质上是().的生态系统。A、自然形成B、原有C、一个人工创造D、未经过干预...
Sunday, April 28, 2024
草莓灰霉病是由()引起的。A、细菌B、真菌C、病毒D、原核生物...
Tuesday, April 30, 2024
Monday, January 29, 2024
Tuesday, April 30, 2024
工业三废是指()。A、废渣、废气、废水B、废产品、废气、废水C、废渣、废材料、废水D、废渣、废二氧化碳、废水...
Sunday, April 28, 2024
Tuesday, April 30, 2024
早熟果树的品种选地应选择()A、南坡B、东北坡C、北坡D、西北坡...
Saturday, January 27, 2024
Wednesday, March 6, 2024
Tuesday, April 30, 2024
Tuesday, April 30, 2024
Tuesday, April 30, 2024
Monday, January 29, 2024
绿色食品是指()食品。A、黄绿颜色B、无污染C、无公害D、深绿色...
Tuesday, April 30, 2024
Saturday, January 27, 2024
Tuesday, April 30, 2024
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蚜虫防治可以采取()A、黄板诱杀B、红光诱杀C、紫光诱杀D、黑光灯诱杀...
Sunday, April 28, 2024
绿色园艺食品是指园艺产品在收获前和收获后都能够使产品保持绿色。...
Wednesday, February 7, 2024