C154 Find clues

"Oh, I was so excited that I forgot to introduce myself. My name is Du Jiang, and I'm a computer major. Du Jiang had a twin brother, Du Hai. Although the two were twins, their personalities were completely different. His brother had a wish which was to get a rank for the computer major. He would train hard every day, and just a week ago when he was practicing to get to the top of the basket