如果想做醫生讀大學個陣時要讀咩科?

Depending on whether you are talking about a undergraduate degree of Medicine or a postgraduate degree.
Undergrad. Medicine - everything is included such as chemistry, biology, physics, physiology, pharmacology, biochemistry and maths - all should take about 5 years + 2 yrs of intership.
Postgrad. - some unis accept students from all different basic degree backgrouds (arts, sciences etc.) but they would ask you to do courses in basic biology, physics, chemistry and more advanced level in physiology, pharmacology and biochemistry. Postgrad. courses are about 3 to 4 yrs + 2 ys intership
That also depends on which country you are in...the above applies to the Australian universities, I'm guessing HK would be similar.
Good luck!

2007-03-23 23:25:18 補充：
Ahh spelling mistake - it's INTERNSHIP..you know what I mean

1. 想做醫生, 當然讀醫科 醫科要先讀五年, 再加二年實習, 共要 七年
2. 讀化學, 我看不能做到醫生。 讀化學系, 要三年或四年 (depend 大學),