近几年高校持续扩招，教学投入不足，管理工作不到位等诸多因素带来本科毕业设计质量出现了明显的滑坡。
However, enrollment expansion of institutions of higher learning, insufficient investment in education and poor management have led to an evident decline in the quality of graduation projects.
教学设备投入不足。
作为一种教学环境，博客也存在不足，如博客空间有限，上传文件类型受限，有时不稳定，维护整理博客投入精力大等。
The blog, as a new teaching environment, also has shortcomings such as limitation of its space and uploading file types, instability and so on.
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