在HAc溶液中加入下列物质后,使HAc的解离度增大的是()。
A.NaAc
B.HCI
C.氨水
D.均不能
参考答案:C
管道中液体流动方向垂直的断面称为过水断面。
________ to the hot weather here was more difficult than I had expected.
A.Adjusting
B.Adopting
C.Relating
D.Using