In a recent study, Professor Betsy Sparrow conducted some experiments.

在最近的一项研究中，贝西·斯派罗教授进行了一些实验。

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Some of the experiments Dr Piff conducted, however, sorted people by the income of the family in which the participant grew up.

ECONOMIST: They are more selfish

And, as with some of the earlier science experiments conducted by the rover, the scoop results - when they come - are expected to be fairly mundane.

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There have been some unexpected responses, for instance markedly different phytoplankton communities and total biomass resulted from two iron addition experiments conducted a year apart at the same site in the north west Pacific Ocean.

UNESCO: MEDIA SERVICES