将函数y=sin（4x﹣$\frac{\mathrm{\pi }}{6}$）图象上各点的横坐标伸长到原来的2倍，再向左平移$\frac{\mathrm{\pi }}{4}$个单位，纵坐标不变，所得函数图象的一条对称轴的方程是（　　）

①国家权力机关的监督

②司法机关的监督

③审计部门的监督

④监察部门的监督

阅读短文，下列问题

A

“Class, tomorrow I want you to boring a cup of macaroni(通心粉) for our craft class, OK?"

     I was afraid of the next day because I knew we had no macaroni at home. Living in an alcoholicenvironment, we never had too much of anything except beer bottles.

      I went home after school:  I knew that the local bottle shop gave ten cents for a beer bottle, so I decided to sell some bottles to get money for macaroni.

     I started collecting the bottles and sold them. I earned eighty cents. Although I did my best, I still had no macaroni for my craft class.

     "Weren't you listening when I asked you to bring it, John?" my teacher asked.

     I was embarrassed. I didn't know what to say and other children started laughing. Then a little girl, Rosalyn, who sat beside me turned to me and said, “You can have some of mine." She gave some macaroni to me. 

     I didn't take her macaroni or say thanks to her. However, I felt thankful for her kindness. Once, my life was full of anger arid hurt. I kept kind people like Rosalyn away, but after that class, I changed my attitude. I thanked all the people like Rosalyn that made this world a better place to live in.