Scientists led by UCL (University College London) have induced dyscalculia in subjects without the maths learning difficulty for the first time.
来自伦敦大学学院的科学家们首次使非数学学习困难的受试者产生计算障碍。
Objective: to test lead level in blood of children with learning difficulty to investigate the relationship of children's intelligence and lead level in blood.
目的：检测学习困难儿童的血铅水平，以分析儿童智力与血铅的关系。
Objective: to test lead level in blood of children with learning difficulty to investigate the relationship of children's intelligence and lead level in blood.
目的：检测学习困难儿童的血铅水平，以分析儿童智力与血铅的关系。
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