题目

Dear Alcohol, You've been around forever. I can remember all the pain you've caused for me. Do you remember the night you almost took my father's life? I do. He loves you. Sometimes I think he loves you more than he loves me. He's addicted to you, to the way you promise to rid him of his problems only to cause more of them. You just sat back and laughed as his car went spinning through the street, crashing into two other cars. He wasn't the only one hurt by you that night. Do you remember the night of my first high school party? You were there. My friends were intrigued by you. They t 若x＝1是方程3x－m＋1＝0的解，则m的值为 [　　] A．－4 B．4 C．2 D．－2