帮我看看这句英文怎么理解Five years later those who had passed in the upp
帮我看看这句英文怎么理解
Five years later those who had passed in the upper ten per cent all , without exception , had executive positions , while not a single young man of the lower twenty-five per cent had become an executive.(这句话中in the upper ten per cent all是什么意思,上10%?估计不对)