Children who ate breakfast more frequently improved in math and were absent and late less than children who did not eat breakfast more often.
经常吃早餐的儿童数学成绩有所进步，与经常不吃早餐的儿童相比，缺席和迟到现象也较少。
Children who ate breakfast more frequently improved in math and were absent and late less than children who did not eat breakfast more often.
经常吃早餐的儿童数学成绩有所进步，与经常不吃早餐的儿童相比，缺席和迟到现象也较少。
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