题目

用阿拉伯数字给下列句子排序，组成一段完整的对话。Hello! Who's there?No! I'm Mike!Let's play! OK?Great!Guess!Are you John?Hi, Mike! My name's Wu Binbin. 答案：【1】1【2】5【3】6【4】2【5】7【6】3【7】4已知函数 .若数列满足且，则实数的取值范围是A．B．C．D．