某预应力混凝土简支梁桥,总体立面布置如下图所示(尺寸单位:m),则该桥的全长、多跨径总长和计算跨径分别是()。(来学网)
  • A.
    (来学网)40m,50m,20m
  • B.
    (来学网)40m,50m,19.5m
  • C.
    (来学网)50m,40m,20m
  • D.
    (来学网)50m,40m,19.5m