4.8×1.09≈____
They are going to Dalian _________ a school trip in the summer holiday.
某恒温密闭容器中,可逆反应A(s)⇌B+C(g)﹣Q达到平衡.缩小容器体积,重新达到平衡时,C(g)的浓度与缩小体积前的平衡浓度相等.以下分析正确的是( )
I think there will be ____ (few) people in every family in the future.