A-A+
Why does the author mention the railroads in p
问题详情
Why does the author mention the railroads in paragraph 1 ？
A．Because miners were traveling to camps in the West
B．Because mineral deposits were discovered when the railroads were built
C．Because the western frontier was being settled by families
D．Because traders used the railroads to transport their goods请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
解析："The building of the Temiskaming and Northern Ontario Railway led to the discovery of rich silver deposits." Choices A, C, and D are true, but they do not relate to the main point in paragraph 1, the resources in the western frontier.
