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关注：1
2013-05-23 12:21
求翻译：Some caveats should be noted when interpreting the present findings. One is that like any natural experiment, children were not randomly assigned to different schools. Thus any preexisting differences between the schools might have contributed to the group differences seen here. For example, parents who prefer and use 是什么意思？ 待解决
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Some caveats should be noted when interpreting the present findings. One is that like any natural experiment, children were not randomly assigned to different schools. Thus any preexisting differences between the schools might have contributed to the group differences seen here. For example, parents who prefer and use
问题补充： |
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