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关注：1
2013-05-23 12:21
求翻译：Throughout the nation's more than 15,000 school districts, widely differing approaches to teaching science and math have emerged. Though there can be strength in diversity, a new international analysis suggests that this variability has instead contributed to lackluster (平淡的# achievement scores by U.S. children relativ是什么意思？ 待解决
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- 离问题结束还有
Throughout the nation's more than 15,000 school districts, widely differing approaches to teaching science and math have emerged. Though there can be strength in diversity, a new international analysis suggests that this variability has instead contributed to lackluster (平淡的# achievement scores by U.S. children relativ
问题补充： |
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