题目

下面是四位同学在讨论自己最喜欢的科目，请根据图片选择他们所喜欢的科目选项。Tom: I like to have this class best because I like playing basketball and soccer very much. It can also help us keep healthy.Sally: In the class, I can learn to play many kinds of instruments (乐器). I can also learn to sing many new songs.Bob: I love this class best because the language (语言) is becoming more and more important in the world. In this class, I can also see many interesting movies.Ted: Many girls think it is hard to learn it well, but I like it best. It is difficul已知集合A={-4，-2，0，1，3，5 }，在平面直角坐标系中，点（x，y）的坐标x∈A，y∈A．计算：（1）点（x，y）正好在第二象限的概率；（2）点（x，y）不在x轴上的概率．