1、已知A(0,3),B(-1,0),C(3,0),求D点坐标,使四边形ABCD为直角梯形(A、B、C、D按逆时针方向排列)2、已知三角形ABC中,顶点A(2,1),B(-1,-1),直线L:x+2y-1=0平分角ACB,球顶点C坐标
用方框所给的单词填空:outgoing,popular,curly,funny,calm,athletic,quiet,thin,serious,kind1,Heisvery_________becauseheexerciseseveryday.2,Theseawas________afterthestorm.3,Mariahas________hairthanKaty.4,He'sagoodactorbuth