Examination analysis: examine the information extracted from pictures, tables, words and other materials. From "along the river" to "along the railway line" and then to "along the tramway" to see the characteristics of urbanization in modern Tianjin. So choose B.

Comments: the form of material-based multiple-choice questions is generally the question is the material, and the alternative is the judgment and explanation of the material. Candidates are required to judge whether the explanation in the alternative is consistent with the effective information provided by the material. This kind of questions mainly examines the candidates' ability of material processing and historical interpretation. In recent years, the characteristics of history examination questions are as follows: selecting materials from practical problems and major problems, setting new scenarios and new problems in combination with the backbone of the discipline, emphasizing the integration of theory with practice, providing data, charts and other information for candidates to analyze and judge, and examining students' ability to use basic knowledge and new information to analyze and solve practical problems. The characteristics of material multiple-choice questions are consistent with the characteristics of test questions, so this kind of questions is the focus of the exam. The basis of this problem-solving is reading the materials. On the basis of understanding the materials, the effective information is combined with the historical background of the alternatives and materials, and the textbook is used to analyze and judge and choose the correct answer.