In this process the students learned "How the impurity affects the melting point and boiling point" and "the factors affecting the rate of diffusion" by doing experiments themselves.
因此在本单元的学习过程中，学生通过实验的方式对其中的两个知识点“杂质对纯物质熔沸点的影响”和“影响扩散速率的因素”进行了学习。
Labs in universities do not get rid of the experimental mode of doing experiments according to the course design to prove the theory, which restrains the cultivation of students 'experimental skills.
高校实验室尚未真正摆脱按课程设置实验及以验证理论为主的实验模式，束缚了对学生实验技能的培养。
And those grad students who spent the year doing research and teaching showed bigger improvements in coming up with testable hypotheses and in the design of valid experiments.
那些一个学年即投入研究又投入教学的学生在提出检验性建设和设计有效实验方面表现出更大的进步。
And those grad students who spent the year doing research and teaching showed bigger improvements in coming up with testable hypotheses and in the design of valid experiments.
那些一个学年即投入研究又投入教学的学生在提出检验性建设和设计有效实验方面表现出更大的进步。
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