题目

    己知：四点A、B、C、D的位置如图所示，根据下列语句，画出图形．     (1)画直线AD、直线BC相交于点O;     (2)画射线AB． 答案：．(1)画图正确································································································· 2分 结论························································································4．交警检查司机是否酒后驾车时，所用的仪器中装有（　　）A．重铬酸钾B．MnO2C．斐林试剂D．BaCl2