Science第 93 / 120 题
A scientist repeats an experiment several times and gets similar results. This repetition mainly helps to—
a.make the results more reliable
b.prove the hypothesis is a law
c.change the independent variable
d.eliminate the need for a control
解析
Repeating an experiment and getting consistent results makes the findings more reliable and trustworthy. Repetition helps rule out chance errors. Reliable, reproducible data is a cornerstone of the scientific method.
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