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【多选题】【背景资料】某居住小区由4座建筑高度为69.0 m的23层单元式住宅楼和4座建筑高度为54.0 m的18层单元式住宅楼组成。设备机房设地下一层（标高为一5.0 m）。小区南北侧市政道路上各有一条DN300 mm的市政给水管，供水压力为0.25 MPa，小区所在地区冰冻线深度为0.85 m。住宅楼的室外消火栓设计流量为15 L/s，23层住宅楼和18层住宅楼的室内消火栓设计流量分别为20 L/s、1...
A.
保护半径150 m
B.
间距120 m
C.
扑救面一侧不宜少于2个
D.
距离路边0.5 m
E.
距离建筑物外墙2m
【单选题】Subways are underground trains, which usually operate 24 hours a day. They are found in larger cities and usually run between the suburbs and the downtown area. Maps and schedules are available from t...
A.
within downtown areas
B.
away from city centers
C.
in or outside big modern cities
D.
between suburbs and city centers