【单选题】根据下列文章,回答36~40题。 In 1784, five years before he became president of the United States, George Washington, 52, was nearly toothless. So he hired a dentist to transplant nine teeth into his jaw - having ...
【单选题】阅读短文,回答问题:BIn 1784, five years before he became president of the United States, George Washington,52, was nearly toothless. So he hired a dentist to transplant nine teeth into his jaw——having ex-tract...
【单选题】根据下列文章,回答36~40题。In 1784, five years before he became president of the United States, George Washington, 52, was nearly toothless. So he hired a dentist to transplant nine teeth into his jaw - having e...