下图所示的路线传播的是(      )

读短文，并判断正误。

                                                                       Summer Holidays(暑假) in England

    With July coming, the summer holidays begin. Boys and girls will have 60 days to rest. The weather is good. Parents will take their children to the seaside(海边) for the holidays. The children like the sand(沙子), the sun, the cool wind and the water. Certainly there are lots of things to see, good things to eat, and exciting things to do. They can play ball games. They can go on field trips, too. They study real things on the field trips. What good holidays!

①f（0）=0；

②若f（x）在0，+∞）上有最小值﹣1，则f（x）在（﹣∞，0上有最大值1；

③若f（x）在1，+∞）上为增函数，则f（x）在（﹣∞，﹣1上为减函数．

其中正确的个数是（   ）

下列属于积极承担责任的行为的是（    ）

①用合理、合法的方法，及时纠正自己的过失                                       ②遇到有跌倒的路人，怕赖上自己而视而不见

③当国家的尊严受到侵犯时，挺身而出，维护国家的荣誉和利益       ④参加青年志愿者活动