【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) The axial force on the cross section of the rod must be perpendicular to the cross section. (2) The shear force on the cross section of the rod must b...