which of the science subjects do you study at your school?这句话里有什么语法

特殊疑问句which of the science subjects do you study at your school?其中,主语 you 谓语 study 宾语 science subjects 状语 at your schoolwhich of 是短语,哪一个 的意思全句意思：你在学校学习的是哪个学科啊?...