【简答题】阅读理解。 According to the American Automobile Association, since 19 all cars sold in the United States have been equipped with seat belts. (These are also called safety belts.) Mary studies of automobi...
【简答题】According to the American Automobile(car)Association, since 19 all cars sold in the United States have been equipped with seat belts(带子)(They are also called safety belts) Many studies of car accide...