俄罗斯的人口和城市主要集中在（    ）

右起第一位，第一位____位；第二位是____位，第三位是____位；第四位是____位，第五位是____位．

漫画赏析结合下图漫画《让座》，回答问题。

    Tina was a ten-year-old girl from England. Two weeks before the 2004 Christmas holiday, her teacher was talking about tsunamis（海啸） in a geography（地理） class at school. This helped her save lives on December 26th, 2004.On that morning, Tina and her family were walking on the Beach and enjoying the sun. Then suddenly, the water went out very far. It was bubbling, too. She told her mother at once. Her mum didn't understand. Tina was very sad. She shouted to her dad. He warned others and everyone left the beach. Because of her warning, the hotel workers quickly helped 100 guests get to a safer place.