题目

Would you like _______ to eat ?A. anything different   B. different anythingC. something different D. different something 答案：C.已知函数f（x）是定义在R上的偶函数，已知当x≤0时，f（x）=x2+4x+3．（1）求函数f（x）的解析式；（2）画出函数f（x）的图象，并写出函数f（x）的单调递增区间；（3）求f（x）在区间[-1，2]上的值域．