问题: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
Tuesday, April 30, 2024
问题:农业上应用的抗生素是()。A、化学农药B、物理诱导类农药C、生物农药D、性激素农药
Tuesday, April 30, 2024
Tuesday, April 30, 2024
Tuesday, April 30, 2024
Wednesday, February 7, 2024
Tuesday, April 30, 2024
问题:葡萄园管理,防止霜霉病的技术之一是:做到:“三光”。即春、夏、秋季修剪().为三光。A、主枝、侧枝、侧根B、病枝、病蔓。病叶C、主枝、侧枝、侧芽D、主枝、侧枝、病叶
Sunday, April 28, 2024
Tuesday, April 30, 2024
问题:以“虫治虫、以菌治虫”。是属于()。A、物理防治B、化学防治C、温差防治D、生物防治
Tuesday, April 30, 2024
Sunday, April 28, 2024
Tuesday, April 30, 2024
问题: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
Sunday, April 28, 2024
Wednesday, March 6, 2024
Monday, January 29, 2024
Tuesday, April 30, 2024
Tuesday, April 30, 2024
问题: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