【单选题】How nice the bag is! Let's _______. [ ]
【单选题】—Do you want ____for your son? —Yes, I do.
【简答题】Jeans are trousers made of a kind of clothe called denim. For many people, blue jeans represent American culture. The history of blue jeans usually begins with a man named Levi Strauss. Although he di...
【判断题】一个元件可以在自己内部使用自己的元件实例。