尽头式消防车道应设回车道或回车场,高层民用建筑设回车场不宜小于(),重型消防车通过,则不宜小于()
A.12m×12m,12m×15m B.15m×15m,18m×18m C.12m×18m,15m×15m D.12m×12m,18m×18m正确答案B
尽头式消防车道应设回车道或回车场,高层民用建筑设回车场不宜小于(),重型消防车通过,则不宜小于()
A.12m×12m,12m×15m B.15m×15m,18m×18m C.12m×18m,15m×15m D.12m×12m,18m×18m正确答案B