题目

We keep reading that TV is bad for you. If this is true, how come the current generation of TV-addicted kids is much smarter than we are? In my home, the only people who can work the remote control are the children. Perhaps TV does educate you. For example, you learn a useful medical fact: A person who has been shot always has time to speak an incomplete sentence before he dies.   But I guess the biggest things we learn from TV can be regarded as “Life Skills”. Bad things only happen on dark and stormy nights. Emotional breakdowns cause people to wander in the heavy rain without umbrel选修4-4：坐标系与参数方程在直角坐标系 中，直线 的参数方程为 （ 为参数），以原点为极点， 轴正半轴为极轴建立极坐标系，圆 的极坐标方程为 .（1）写出圆 的直角坐标方程；（2） 为直线 上一动点，当 到圆心 的距离最小时，求 的直角坐标.