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对照比较实验是自然科学研究中广泛采用的一种研究方法。这种实验,关键是在其他条件(影响因素)相同的情况下,只改变一个条件(一个影响因素),通过两组或多组实验的对照比较,来确定这一条件(影响因素)是否对事物起作用或起怎样的作用。该方法的优点在于影响因素是可以被严格控制的,人们可以按照自己的设想去改变影响因素,并让
Control comparison experiments are a widely used research method in natural science research. The key to this kind of experiment is to change only one condition (one influencing factor) under the same conditions as other conditions (influencing factors), and to determine if this condition (influencing factor) is correct by comparing two or more groups of experiments. What works or what does it do? The advantage of this method is that the influencing factors can be strictly controlled. People can change the influencing factors according to their own ideas and let