A:垂直气压梯度力
B:水平气压梯度力
C:海陆热力性质差异
D:地转偏向力
室温下,取浓度相同的NaOH和HCl溶液,以3∶2 体积比相混合,所得溶液的pH 等于12,则原溶液的浓度为
I'm not sure how much scholarship you will receive, but it will roughly __________your major expenses.