题目

A farmer went to town to sell his vegetable. But it was snowing that afternoon, and there_26_ few people in the street. So when his vegetable was sold out, it was dark. _27_ his way home, he saw a man _28_ in the snow. He put his basket _29_ and was going to _30  the man to get up. At that time he found  31  was a dead man _32_ that there was _33  blood on the ground. He was _34_ frightened that he ran away _35 ,  _36_ his basket away. The next _37_ the farmer was sent to the police station. After showing him the basket, an officer asked, “Is this yours?” “Yes,sir.” the fa已知直线与曲线恰有两个不同的交点，记k的所有可能取值构成集合A；P(x，y)是椭圆上一动点，与点P关于直线y＝x＋1对称，记的所有可能取值构成集合B，若随机的从集合A，B中分别抽出一个元素，则的概率是___________