题目

阅读下面短文，掌握其大意，然后从各小题所给的4个选项中选出最佳选项。When I was a student, what others thought was important to me. I was much ______ than my classmates. Being so tall made me ______. So I joined the group that played jokes on others at school to keep the attention off my unusual ______.I played many jokes on others. I thought they were ______, but many people didn’t think so, including my parents, because most of the jokes were harmful. My parents reminded me of the “Golden Rule”: ______ others as I’d like to be treated. They wanted me to如图，已知菱形ABC1D1的边长AB=1cm，∠D1AB=60°，则菱形AC1C2D2的边长AC1=________ cm，四边形AC2C3D3也是菱形，如此下去，则菱形AC8C9D9的边长=________cm．