下图中电视屏幕上的图像引起猫大脑皮层视觉中枢兴奋，经插入脑内的电极记录神经膜电位变化，当兴奋产生时，对该电位变化正确的表述是（　　）

   Danny is a schoolboy. He 1 in a small town. His home is about ten miles  2 school and the roads are not flat(平坦的). So it's 3 for him to get to school. He 4 at about five thirty every day and has breakfast. Then he5 school at around six o'clock. First, he6 his bicycle to the bus station. That takes about forty minutes.7 the bus takes him to school. It usually takes about thirty minutes. Sometimes he has8time for breakfast at home, so he has something for breakfast on the bus.
   “I've never taken trains. It must be a lot9fun than taking buses,” says Danny. He studies very10at school. He hopes he can go to school in a big city some day. He can take a train to school then.

将下列句子改为陈述句

①《蒙娜丽莎》是世界上最杰出的肖像画，世界上有多少人能亲睹她的风采呢？

②没有太阳怎么会有我们这个美丽可爱的世界呢？

如果你去买东西，发现了假冒伪劣产品，你应该拨打的电话是（   ）