题目

（2010·辽瓦房店高级中学届高三9月月考）Try the new cleaner. Just a few minutes every day—that’s all it takes—       you will have shining floors and furniture. A. and          B. but     C. or       D. so 答案：A已知函数与互为反函数，函数的图象与的图象关于轴对称，若，则实数的值为（ ）A． B． C． D．