A.       B.     C.     D.     E.      F.

①“减法”作为关键部分，其功能关系人生整体的轻松和自在

②要控制好“加法”和“减法”的度，做出正确的人生选择

③“加法”在一定条件下会向“减法”转化

④“加法”与“减法”同等重要，不可或缺，都能让人生更幸福

在直线$y=\frac{1}{2}x+\frac{1}{2}$上，且到坐标轴距离为1的点有（   ）

    Cathy, Judy, Bella and Ellen are four good friends in Maryland, the USA. They go to the same school and always stay together. However, they are going to spend this summer holiday in different places. Ellen is going to visit her grandparents in Greece. Judy plans to stay at home and work in an ice-cream shop. Bella will (将) go to a football club in Mexico, and Cathy has  to visit her uncle in South California. Before leaving (离开), the four girls go shopping  together, and  they find a nice pair of jeans in a shop. To their surprise, the jeans ft all of them, so they buy the jeans and call them the Travelling Jeans. They want to share the jeans and their different stories in the coming summer. They have a good idea. Everyone can wear the jeans for some days, and then send them to the next one. It will make them feel like they are always together. What a lovely idea it is!