题目

阅读连线。Hi, I’m Betty. I like to have lunch at school. I like hamburgers and water for lunch. My friends are different(不同的). Kim likes donuts and soup for lunch. Rose likes hot dogs and juice. Tom likes fish and rice for his lunch. Jack likes noodles and vegetables for lunch. What about you?1. Betty A.2. Kim B. 3. Rose C. 4. Tom D. 5. Jack E. 答案：【答案】1. E 2. A 3. B 4. C 5. D【解析】略如果函数f(x)=(x+a)3对任意x∈R都有f(1+x)=-f(1-x)，试求f(2)+f(-2)的值.