✔ 最佳答案
one of my old friend ( study in CUHK ) major in Physics and he changed to Economics 2nd year .
He got only grade D & E in A-level . It is impossible for him to apply for any popular subject in CUHK . So , he choose PHYICIS as his 1 choice .
Then , he get a G.PA. over 3 in his 1 st year . Then , he 's qualified to change his major to Econ.
Economic is much popular ( and more easy to find jobs after grad . ) than Physics .