2.068米____ 20.68米

    Hi, I'm Tom. I'm a student. I'm eleven. My birthday is on 12th July. I go to school by bike. My father is a fireman. He uses water to put out fires. He's brave. He goes to work by bus. My mother is a doctor. She works in a hospital. She helps people. She goes to work by car. I like helping people, too. I want to be a doctor in the future. But my brother wants to fly a plane. He wants to be a pilot in the future.

某城市地处平原地区，下图示意该城市功能分区，若该城市功能分区合理，则其主导风向和河流的大致流向可能是（  ）