In other experiments, participants were given math problems to practice for an upcoming test.
在另一些实验中，参加者被要求做一些数学题以为之后的测试做准备。
In other experiments, two different birds, called Pierre and Corbeau, also made the first approach with tools on three separate occasions.
在其它实验中，两只不同的鸟——皮埃尔和科布，也在三个独立场景中利用了工具进行初次接触。
In other experiments, they discovered that "knocking" out the gene that produces SP in transgenic mice lowered their chances of acquiring the condition.
在其他的实验里，他们发现在转基因白鼠中，剔除那些制造“SP”物质的基因会降低他们得到那种疾病的概率。
In other experiments, Provine has proved that yawning has nothing to do with oxygen or carbon dioxide intake.
在其他的实验中，普罗万也证明打哈欠与氧气或者二氧化碳的吸入没有关系。
In other experiments, Provine has proved that yawning has nothing to do with oxygen or carbon dioxide intake.
在其他的实验中，普罗万也证明打哈欠与氧气或者二氧化碳的吸入没有关系。
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