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【单选题】
铁路路基 路堑应于路肩两侧设置()。A.
天沟
B.
截水沟
C.
侧沟
D.
挡水墙
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【简答题】Not many years ago， a wealthy and rather strange old man named Johnson lived alone in a village in the south of England. He had made a lot of money in trading with foreign countries. When he was seven...
【单选题】Ag 2 O 分解可用下面两个计量方程之一表示,其相应的平衡常数也一并列出: Ag 2 O(s) → 2Ag(s)+1/2O 2 Kp(1) 2Ag 2 O(s) → 4Ag(s)+ O 2 Kp(2) , 设气相为理想气体,且已知反应是吸热的,试判断下列结论哪个是正确的:( )
A.
Kp(2)=[Kp(1)] 1/2
B.
Kp(2)=Kp(1)
C.
随温度的升高而增大
D.
O 2 气的平衡压力与计量方程的写法无关
【简答题】??B Not many years ago,a wealthy and rather strange old mall named Johnson lived alone in a village in the south of England.He had made a lot of money in trading with foreign countries. When he was se...
【简答题】Not many years ago, a wealthy and rather strange old man named Johnson lived alone in a village in the south of England. He had made a lot of money in trading with foreign countries. When he was seven...
【简答题】Not many years ago, a rich and rather strange old man called Johnson lived alone in a village in England. He 26__________ (make) lots of money in doing business with foreign countries. At sy-five...
【单选题】Ag 2 O分解可用下面两个计量方程之一表示,其相应的平衡常数也一并列出:Ag 2 O(s) →0.5O 2 (g)+2Ag(s)的 ;2Ag 2 O(s) →O 2 (g)+4Ag(s)的 ;设气相为理想气体,且已知反应是吸热的,试判断下列结论正确的是( )
A.
O 2 的平衡压力与计量方程式的写法有关
B.
C.
随温度的升高而增大
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