随着年级升高，大学生自信心反而下降；
With the grades of the students going up, on the contrary, their self-confidence decreased.
有关研究表明：学困生的学生人数随着年级升高而增加。
The study showed that:the number of students with learning difficulties will increase with grade level.
通过分析发现衔接手段的变化随着年级升高呈现出不同的变化趋势。
The results do not show the same trend of development on different types of cohesive devices.
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