题目

When I was a little girl, my mom would say,“Half the fun of doing anything is sharing it with others.” 16  Friends and mates allow us to enjoy our successes and our joys, comfort us in our hard moments, and provide a mirror for us to learn more about ourselves. I’ve always looked at friends as the gifts we choose. They enrich our lives. As Robert Louis Steven once said,“ 17 ” To be a good friend or partner, it’s important to be a good listener. Hear what your friend or mate wants to say first rather than jump to conclusions or get defensive. 18 When they hear their words r如果a，b都是非零实数，则下列不等式中不成立的是 [　　] A．|a＋b|≥a－bB．≤|a＋b|(ab＞0) C．|a＋b|≤|a|＋|b|D．||≥2