The problem: Research found that four in five 18 to 34-year-old men put on a brave face when they are anxious. Repressing those feelings won't help anyone.
问题：研究表明五分之四18至34岁的男人会在感到焦虑时做出勇敢的表情，但压抑那些感觉对谁都没好处。
Summarizing mainly focuses on the problem's background, basic studied problem, research meaning and method and domestic and international relevant research studies, etc.
综述中主要论述了问题研究的背景，研究的基本问题，研究的意义与方法以及国内外相关研究的现状等。
The combination of physics stratification teaching with the class teaching of "problem-research" could enhance the efficiency of physics teaching.
物理分层教学与“问题——研究”课堂教学模式的有机结合能有效地提高物理教学的效率。
The combination of physics stratification teaching with the class teaching of "problem-research" could enhance the efficiency of physics teaching.
物理分层教学与“问题——研究”课堂教学模式的有机结合能有效地提高物理教学的效率。
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