题目

POETRY CHALLENGEWrite a poem about how courage, determination, and strength have helped you face challenges in your life.Prizes3 Grand Prizes:Trip to Washington, D.C. for each of three winners, a parent and one other person of the winner’s choice. Trip includes round-trip air tickets, hotel stay for two nights, and tours of the National Air and Space Museum and the office of National Geographic World.6 First Prizes:The book Sky Pioneer:A Photobiography of Amelia Earhart signed by author Corinne Szabo and pilot Linda Finch.50 Honorable Mentions:Judges will choose up to 50 honorable mention wi如图所示使物体A、B带电的实验为A．摩擦起电      B．传导起电      C．感应起电     D．以上都不对