【简答题】Chinatown is the name given to an area in the middle of London. It is just between Leicester Square and Shaftsbury Avenue. Gerrard Street is at the center and is the most important street in the area....
【单选题】The sides of a square are 3 cm long. One vertex of the square is at (2,0) on a square coordinate grid marked in centimeter units. Which of the following points could also be a vertex of the square?