如果|5﹣a|+|b+3|=0，则代数式$\frac{b}{a+b}$的值（　　）

读拼音，写词语。

阅读短文，下列问题

（C）

    I like sports. I have ten tennis balls, seven basketballs, four volleyballs and five soccer balls. I play tennis with my friends every day.

    I have five baseballs, five volleyballs, two soccer balls. I like ping-pong. It's easy for me. I often play ping-pong with my classmates. I also(也) have three ping-pong bats and some ping-pong balls.

    I don't have any(任何的) balls. I love sports, but I don't play them. I only watch them on TV.