8.小明同学要探究“种子的萌�需要水分 .在设计对照实验时甲乙两组实验除一个条件不同外其他条件都应相同.不同的条件是 A.甲用20粒 Template




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tomski8.小明同学要探究“种子的萌�需要水分 .在设计对照实验时甲乙两组实验除一个条件不同外其他条件都应相同.不同的条件是 a.甲用20粒 coloring