问题
选择题
26. I am moving to the countryside because the air there is much fresher than _______ in the city.
A．ones
B．one
C．that
D．those
答案
答案：C
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26. I am moving to the countryside because the air there is much fresher than _______ in the city.
A．ones
B．one
C．that
D．those
答案：C
bB(g)达平衡后，保持温度不变，将容器容积增加一倍，当达到新平衡时，B的浓度是原来的60%，则下列说法正确的是（ ）