根据《铁路轨道设计规范》,特重型道路段中的钢轨质量为()kg/m。
A.40
B.50
C.60
D.75
参考答案:D
Mary came ______ in the Chinese exam. This is ______ time she got the good mark. [ ]
A. first, second
B. the first, the second
C. first, the second
D. the first, second
我国古代儒家管理思想体系中所阐明的管理原则 ( )
A.德治
B.法治
C.无为而治
D.分权而治