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【多选题】
（ ）线路属于长大下坡道。
A.
线路坡度超过8‰，长度为6 km
B.
线路坡度超过6‰，长度为8 km
C.
线路坡度超过12‰，长度为5 km
D.
线路坡度超过20‰，长度为2 km
E.
线路坡度超过15‰，长度为5 km
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参考答案：
举一反三
【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
相关题目：
【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
参考解析：
题目纠错 0
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