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【单选题】
某市政雨水管道工程,已知沟槽长30m,宽为5m,槽深3.8米,无检查井。槽内铺设直径为800mm铸铁管,管下混凝土基座为0.455m3/m,基层下碎石垫层0.35m3/m,密实度为98%。该管道回填方工程量为( )。A.
560.78
B.
550.78
C.
540.78
D.
530.78
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【单选题】Dr Bethune was busy _____ the wounded soldiers. [ ]
A.
operating on
B.
operate on
C.
operate at
D.
to operate in
【单选题】At what level do films operate?
A.
Films operate at the rational level.
B.
Films operate at the emotional level.
C.
Films operate at the cold-evaluating level.
【单选题】They set up a(n )__________________ (operate) table in a small temple. A. operating B. to operate C. operated D. operate
A.
operating
B.
to operate
C.
operated
D.
operate
【简答题】BOT的全称是() Abuild-operate-transfer Bbusiness-operate-transfer Cbusiness-office-transfer Dbuild-operate-train
【判断题】An NVOCC usually does not operate vessel to provide sea transportation, but operate a regular schedule service.( )
A.
正确
B.
错误
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