My name is Maggie.I am a 13-year-old Canadian girl. I live in Toronto. It's a very big city. I can speak English and French. I have classes from 8:00 a.m. to 2:40 p.m. I have lunch at school. Many girls love playing volleyball after school, but I like swimming. I have a big family, my father, my mother and two brothers. I think China is a great country. I want a Chinese pen pal.

    Please sendemails to me if you want to be my pen pal. My email address is maggie13@yahoo.com.

人生病输液时，注射在人体里的药物是通过（  ）来运输的．

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下列各项，不属于地图基本要素的是（    ）

人在吞咽时，能够遮住喉的入口，防止食物进入气管的结构是（　　）