39. When a non volatile solute is added to a volatile solvent, the solution vapor pressure________ ， the  boiling point ________ , the  freezing point________，and the osmotic pressure across a  semipermeable membrane_________. 
(A) decreases, decreases, increases, decreases
(B)J increases, decreases, increases, decreases
(C) decreases, increases, decreases, increases
(D) increases, increases, decreases, increases
(E) decreases, increases, decreases, decreases

答案：登入後查看
統計： A(2), B(0), C(12), D(1), E(2) #2735527