题目

已知关于x的不等式（1﹣a）x＞2的解集为x＜﹣3，则a． 答案：【1】= {#mathml#}53{#/mathml#}— ________?— Wonderful. It's years since I enjoyed myself so much.  [     ]A. Did you go to the partyB. What was the party like C. Is it wonderful D. Do you like the party