安全理让的实质是守法的让违法的，体现"有理也让人"，这是预防和减少交通事故的最有效的措施之一。
参考答案：对
— How do you like your English teacher?
— He is great. We _____ friends since three years ago. [ ]
A. were
B. have made
C. have been
D. have become
施工便道硬化考虑哪些方面？
