单选题 Do you mean this is the ______ decision you have made after thinking for hours?
【正确答案】 B
【答案解析】[解析] 句意:这就是你经过几个小时的思考后做出的最后决定吗?词义辨析题。upright:挺直的,垂直的;ultimate:最终的,最后的;total:总的,全部的;tight:紧的,牢固的。故选B。