用一定浓度的生长素类似物可以杀死小麦田里的双子叶杂草而不会�制小麦的生长.对此正确的解释是 A.此浓度只对小麦起作用b.此浓度只对杂草起 Template




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tomski用一定浓度的生长素类似物可以杀死小麦田里的双子叶杂草而不会�制小麦的生长.对此正确的解释是 a.此浓度只对小麦起作用b.此浓度只对杂草起 coloring