题目

根据材料内容选择最佳答案。 Mr. Smith is from the UK. He works in Shanghai now. He has two daughters. They are twin(双胞胎) sisters. Mr. Smith calls them Lily and Lucy. Jim is Mr. Smith's friends. He often goes to see the Mr. Smiths. He often buys something for Lily and Lucy. One Sunday, He goes to Mr. Smith's home. When the twins see Jim, they are happy. Jim asks Lucy,“How old are you, Lucy?” “Three.” she answers(回答). Jim says, “Lily and Lucy, these bananas are for you. I know you like bananas. Well, I have a small question. If one of you can answer well, -的倒数是（ ）A．-B．-3C．D．3