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【单选题】
对于二、三、四级公路的越岭路线,任一连续3公里路段范围内的平均纵坡不宜大于( )。A.
0.08
B.
0.065
C.
0.055
D.
0.07
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【单选题】. Jack used to work in a garage for a full 10 years, so he fixed the broken engine ______ ease.
A.
in
B.
with
C.
on
D.
beyond
【单选题】Main propulsion engine lube oil sumps should be constructed _____.
A.
so as to never be integral lube
B.
with a sloped bottom
C.
only of nonferrous, noncorrosive metals
D.
with drain/return lines terminating just above or at the designed normal level
【单选题】The famous nitro boosts are added to the engine so that______ .
A.
drivers can beat other racers in speed
B.
it is smoother to start the car
C.
the car can climb the steep slope easily
D.
the car can cover a longer distance
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