题目

In Britain you are allowed to drive a car when you are seventeen. You have to get a special two-year driving license before you can start. When you are learning, someone with a full license always has to be in the car with you because you aren’t allowed to drive the car on the road alone. You don’t have to go to a driving school –--- a friend can teach you. The person with you isn’t allowed to take the money for the lesson unless he’s got a teacher’s license.   Before you are allowed to have a full license, you have to take a driving test. You can take a test in your own ca已知点P(x，y+1)在第二象限，则点Q(－x+2，2y+3)在第______象限．