[问答题]
[判断题]的变动程度。()A.对B.错
[单选题]A.B.C.D.不能确定大小
[单选题]A.B.C.D.
[单选题]A.随温度升高而增大B.随温度升高而减小C.D.
[单选题]A.B.NaClC.D.