A-A+
With what topic is the passage mainly concerne
问题详情
With what topic is the passage mainly concerned?
A.Salt substitute for roads.
B.The research of CMA.
C.Environmental protection.
D.Road and vehicle damage.请帮忙给出正确答案和分析,谢谢!
参考答案
正确答案:A
解析:本题是一道问及文章主题类问题。通读全文,我们不难总结出本文的中心主题是关于为保证道路安全减少食盐的使用与寻找食盐替代品的问题。因此,本题的正确答案应是A。