题目

—Will she win the game? — . A.I don’t believe it B.I believe not so C.It appears not D.I’m sure not 答案：C 解析: 此题考查固定用法。应该说 I don’t believe so.或 I believe not.或I am not sure.或It appears not/so.设集合A=, B=, 函数f(x)=若, 且,则的取值范围是(     ) A.        B.         C.      D.