问题
单项选择题
客车主型轮对分（）等几类型。
A、RC3、RD3
B、RC3、RD4、RD3p
C、RC3、RD3、RC4
D、RC3、RD3、RC4、RD4、RD3p
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
客车主型轮对分（）等几类型。
A、RC3、RD3
B、RC3、RD4、RD3p
C、RC3、RD3、RC4
D、RC3、RD3、RC4、RD4、RD3p
参考答案：D