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2013-05-23 12:21
求翻译：Last year,researchers studied 34 students at the University of Virginia,taking them to the base of a steep hill and fitting them with a weighted backpack.They were then asked to estimate the steepness of the hill.Some participants stood next to friends during the exercise,while others were alone是什么意思？ 待解决
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Last year,researchers studied 34 students at the University of Virginia,taking them to the base of a steep hill and fitting them with a weighted backpack.They were then asked to estimate the steepness of the hill.Some participants stood next to friends during the exercise,while others were alone
问题补充： |
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