题目

       — How do you like science?               —it’s hard, it’s very interesting.               A. But            B. Though                    C. Because     D. So 答案：Bp{font-size:10.5pt;line-height:150%;margin:0;padding:0;}td{font-size:10.5pt;}（08年西城区抽样测试文）函数的反函数的定义域为（ ）A.            B.                   C.           D.