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The research involved administering standardized face recognition tests.
该研究使用了标准化的面孔识别测验。
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ELEPHANTS can perform simple arithmetic and have passed self-recognition tests.
大象会简单的算术，研究证实他们认得自己的影像。
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ELEPHANTS can perform simple arithmetic and have passed self-recognition tests.
大象会简单的算术，研究证实他们认得自己的影像。
youdao