【简答题】Read the Introduction section of the paper.Paragraphs I5 and I6 occupy the niche. Which paragraph presents the objective of the research? Which one summarizes the methodology of the research?
【单选题】Which of the following statements is correct? (1) If there is only axial force on each cross-section of the rod, then only tensile or compressive deformation exists for the rod. (2) If there is only t...