怎样才会呢?
追答don't think about getting a full mark
A) it's almost impossible. no matter how strong you are, you cannot ensure you are perfect enough to get all the marks.
B) good universities focus more on all your subjects and your score on a whole. if you are really good at biology as well as interested in it, why not parcipate in a biology olympic comptition and get a first prize. if so, you can attend to any colleges you want, even if you fail any other subjects