【信穎吳】評論
A）醫生 （B）警察 （三）研究 （D）電視
【Liz】評論
The ______17______ found that people who watched an average six hours of TV a day lived an average 4.8 years less than those who didn't watch any television.
【業精於勤，事立於豫】評論
The ______17______ found that people who watched an average six hours of TV a day lived an average 4.8 years less than those who didn't watch any television.(研究發現，一天平均看電視6小時的人比那些沒有看任何電視的人少了平均4.8年的壽命。)17、(A) doctors 醫生。(B) police 警察。(C) study 研究。(D) TV 電視。