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【简答题】
变直径管,直径d1=320mm,d2=160mm,流量V1=1.5m/s。求V2
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举一反三
【简答题】She had a special VIP pass and plowed______ the waiting crowd in front of the theater
【简答题】Je vous parle (de les) enfants de Victor ! Vous savez que je les ai emmenés (à la) piscine. Après nous sommes allés tous ensemble (à le) restaurant. Et ensuite (à le) zoo. Les enfants parlaient (à les...
【单选题】The elasticity of supply equals ( ) if the supply curve is horizontal.
A.
0
B.
1
C.
infinity
D.
-1
【单选题】She had a spacial VIP pass and ___ through the waiting crowd in front of the theater.
A.
lived
B.
looked
C.
put
D.
plowed
【单选题】She had a special VIP pass and ______through the waiting crowd in front of the theater.
A.
plow
B.
plows
C.
plowing
D.
plowed
【单选题】Who is __________ you? [ ]
A.
waiting for
B.
waiting with
C.
waiting at
D.
waiting to
【单选题】The elasticity of supply equals ( ) if the supply curve is vertical.
A.
0
B.
1
C.
infinity
D.
-1
【单选题】The supply curve is upward sloping because of
A.
increasing marginal cost.
B.
decreasing marginal benefit.
C.
decreasing marginal cost.
D.
increasing marginal benefit.
E.
increasing total cost.
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