题目

Known as the “King of Pop，” Michael Jackson sold more than seven hundred fifty million albums over his career.He redefined (重新定义) popular culture with his energetic music，dance moves and revolutionary music videos.      Michael Jackson was born in Gary，Indiana in 1958.He was the seventh of nine children.He was five years old when he began singing with his brothers in a group called the Jackson 5.In 1968 the group signed a recording deal with Motown Records.Michael was eleven years old when they released their first album a year later. The Jackson 5 became an imme五氧化二碘（I2O5）常用于测定空气中一氧化碳的含量，该化合物中碘元素的化合价为（ ）A．-5B．+3C．+5D．+2