填空题在进行实验⑥⑦过程中，也运用了控制变量法，保持了____不变．进行探究、验证．
填空题
在进行实验⑥⑦过程中，也运用了控制变量法，保持了____不变．进行探究、验证．
参考解析
解析：
在⑥和⑦对比中保持了排开液体的体积不变进行了探究．
在⑥和⑦对比中保持了排开液体的体积不变进行了探究．
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