铁路设计基础单项选择题每日一练(2019.11.07)

A.20mm
B.30mm
C.35mm
D.40mm

A.1435
B.1391
C.1348
D.1450

A.1030
B.1046
C.1051
D.1068

A.急促
B.不变
C.平滑
D.以上均不对

A.1445
B.1439
C.1450
D.1435