贫血很大程度上影响了学生自身的考试成绩，而且也波及到他们的同龄人，因为学生贫血易会破坏课堂学习。
Anemia significantly drags down test results not only of students with the disease but also of their peers, because students with anemia tend to disrupt classroom learning.
文章就课件制作和课堂讲授中易出现的问题做了研究与讨论。
In the article, research and discuss about the problem that appear easily in the creating lesson software and in the classroom tuition.
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