The fourth part analyses some problems of project study existing in teaching and the causes of these problems, and put forward some effective measures to settle these problems.
第四部分分析了开展研究性学习教学活动中普遍存在的一些问题，剖析了问题的成因，并对如何解决这些问题提出了一些行之有效的对策。
This thesis proposed measures to settle these problems respectively.
针对这些问题，提出了相应的改进措施。
In order to settle these problems, some system arrangements are needed to alleviate information asymmetry.
而克服这些问题就应做出一些制度安排以减轻信息不对称的程度。
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