题目

 It was hard for him to fit in a new class, in which ______ he was familiar with.      A. each                        B. neither               C. both                         D. none 答案:D如图,在平面直角坐标系中,A(-2,-1),B(2,-2),C(3,1).(1)在图中作出△ABC关于x轴的对称图形△A1B1C1(A和A1,B和B1,C和C1分别是对应顶点).(2)写出点A1,B1,C1的坐标:A1_______, B1______, C1______.(3)△A1B1C1的面积为__________.
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