题目内容：
过原点的直线与圆x2+y2+4x+3=o相切，若切点在第二象限，则该直线的方程是( ) 
参考答案：
答案解析：
单选题：过原点的直线与圆x2+y2+4x+3=o相切，若切点在第二象限，则该直线的方程是( )
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